Keep aspect ratio for epub output and other changes
This commit is contained in:
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@ -1,4 +1,4 @@
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Copyright (c) 2015-2019 Will Bond <will@wbond.net>
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Copyright (c) 2015-2022 Will Bond <will@wbond.net>
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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@ -0,0 +1,305 @@
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Metadata-Version: 2.1
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Name: asn1crypto
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Version: 1.5.1
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Summary: Fast ASN.1 parser and serializer with definitions for private keys, public keys, certificates, CRL, OCSP, CMS, PKCS#3, PKCS#7, PKCS#8, PKCS#12, PKCS#5, X.509 and TSP
|
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Home-page: https://github.com/wbond/asn1crypto
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Author: wbond
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Author-email: will@wbond.net
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License: MIT
|
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Description: # asn1crypto
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|
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A fast, pure Python library for parsing and serializing ASN.1 structures.
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|
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- [Features](#features)
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- [Why Another Python ASN.1 Library?](#why-another-python-asn1-library)
|
||||
- [Related Crypto Libraries](#related-crypto-libraries)
|
||||
- [Current Release](#current-release)
|
||||
- [Dependencies](#dependencies)
|
||||
- [Installation](#installation)
|
||||
- [License](#license)
|
||||
- [Security Policy](#security-policy)
|
||||
- [Documentation](#documentation)
|
||||
- [Continuous Integration](#continuous-integration)
|
||||
- [Testing](#testing)
|
||||
- [Development](#development)
|
||||
- [CI Tasks](#ci-tasks)
|
||||
|
||||
[](https://github.com/wbond/asn1crypto/actions?workflow=CI)
|
||||
[](https://circleci.com/gh/wbond/asn1crypto)
|
||||
[](https://pypi.org/project/asn1crypto/)
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|
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## Features
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|
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In addition to an ASN.1 BER/DER decoder and DER serializer, the project includes
|
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a bunch of ASN.1 structures for use with various common cryptography standards:
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|
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| Standard | Module | Source |
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| ---------------------- | ------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
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| X.509 | [`asn1crypto.x509`](asn1crypto/x509.py) | [RFC 5280](https://tools.ietf.org/html/rfc5280) |
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| CRL | [`asn1crypto.crl`](asn1crypto/crl.py) | [RFC 5280](https://tools.ietf.org/html/rfc5280) |
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| CSR | [`asn1crypto.csr`](asn1crypto/csr.py) | [RFC 2986](https://tools.ietf.org/html/rfc2986), [RFC 2985](https://tools.ietf.org/html/rfc2985) |
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| OCSP | [`asn1crypto.ocsp`](asn1crypto/ocsp.py) | [RFC 6960](https://tools.ietf.org/html/rfc6960) |
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| PKCS#12 | [`asn1crypto.pkcs12`](asn1crypto/pkcs12.py) | [RFC 7292](https://tools.ietf.org/html/rfc7292) |
|
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| PKCS#8 | [`asn1crypto.keys`](asn1crypto/keys.py) | [RFC 5208](https://tools.ietf.org/html/rfc5208) |
|
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| PKCS#1 v2.1 (RSA keys) | [`asn1crypto.keys`](asn1crypto/keys.py) | [RFC 3447](https://tools.ietf.org/html/rfc3447) |
|
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| DSA keys | [`asn1crypto.keys`](asn1crypto/keys.py) | [RFC 3279](https://tools.ietf.org/html/rfc3279) |
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| Elliptic curve keys | [`asn1crypto.keys`](asn1crypto/keys.py) | [SECG SEC1 V2](http://www.secg.org/sec1-v2.pdf) |
|
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| PKCS#3 v1.4 | [`asn1crypto.algos`](asn1crypto/algos.py) | [PKCS#3 v1.4](ftp://ftp.rsasecurity.com/pub/pkcs/ascii/pkcs-3.asc) |
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| PKCS#5 v2.1 | [`asn1crypto.algos`](asn1crypto/algos.py) | [PKCS#5 v2.1](http://www.emc.com/collateral/white-papers/h11302-pkcs5v2-1-password-based-cryptography-standard-wp.pdf) |
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| CMS (and PKCS#7) | [`asn1crypto.cms`](asn1crypto/cms.py) | [RFC 5652](https://tools.ietf.org/html/rfc5652), [RFC 2315](https://tools.ietf.org/html/rfc2315) |
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| TSP | [`asn1crypto.tsp`](asn1crypto/tsp.py) | [RFC 3161](https://tools.ietf.org/html/rfc3161) |
|
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| PDF signatures | [`asn1crypto.pdf`](asn1crypto/pdf.py) | [PDF 1.7](http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/PDF32000_2008.pdf) |
|
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|
||||
## Why Another Python ASN.1 Library?
|
||||
|
||||
Python has long had the [pyasn1](https://pypi.org/project/pyasn1/) and
|
||||
[pyasn1_modules](https://pypi.org/project/pyasn1-modules/) available for
|
||||
parsing and serializing ASN.1 structures. While the project does include a
|
||||
comprehensive set of tools for parsing and serializing, the performance of the
|
||||
library can be very poor, especially when dealing with bit fields and parsing
|
||||
large structures such as CRLs.
|
||||
|
||||
After spending extensive time using *pyasn1*, the following issues were
|
||||
identified:
|
||||
|
||||
1. Poor performance
|
||||
2. Verbose, non-pythonic API
|
||||
3. Out-dated and incomplete definitions in *pyasn1-modules*
|
||||
4. No simple way to map data to native Python data structures
|
||||
5. No mechanism for overridden universal ASN.1 types
|
||||
|
||||
The *pyasn1* API is largely method driven, and uses extensive configuration
|
||||
objects and lowerCamelCase names. There were no consistent options for
|
||||
converting types of native Python data structures. Since the project supports
|
||||
out-dated versions of Python, many newer language features are unavailable
|
||||
for use.
|
||||
|
||||
Time was spent trying to profile issues with the performance, however the
|
||||
architecture made it hard to pin down the primary source of the poor
|
||||
performance. Attempts were made to improve performance by utilizing unreleased
|
||||
patches and delaying parsing using the `Any` type. Even with such changes, the
|
||||
performance was still unacceptably slow.
|
||||
|
||||
Finally, a number of structures in the cryptographic space use universal data
|
||||
types such as `BitString` and `OctetString`, but interpret the data as other
|
||||
types. For instance, signatures are really byte strings, but are encoded as
|
||||
`BitString`. Elliptic curve keys use both `BitString` and `OctetString` to
|
||||
represent integers. Parsing these structures as the base universal types and
|
||||
then re-interpreting them wastes computation.
|
||||
|
||||
*asn1crypto* uses the following techniques to improve performance, especially
|
||||
when extracting one or two fields from large, complex structures:
|
||||
|
||||
- Delayed parsing of byte string values
|
||||
- Persistence of original ASN.1 encoded data until a value is changed
|
||||
- Lazy loading of child fields
|
||||
- Utilization of high-level Python stdlib modules
|
||||
|
||||
While there is no extensive performance test suite, the
|
||||
`CRLTests.test_parse_crl` test case was used to parse a 21MB CRL file on a
|
||||
late 2013 rMBP. *asn1crypto* parsed the certificate serial numbers in just
|
||||
under 8 seconds. With *pyasn1*, using definitions from *pyasn1-modules*, the
|
||||
same parsing took over 4,100 seconds.
|
||||
|
||||
For smaller structures the performance difference can range from a few times
|
||||
faster to an order of magnitude or more.
|
||||
|
||||
## Related Crypto Libraries
|
||||
|
||||
*asn1crypto* is part of the modularcrypto family of Python packages:
|
||||
|
||||
- [asn1crypto](https://github.com/wbond/asn1crypto)
|
||||
- [oscrypto](https://github.com/wbond/oscrypto)
|
||||
- [csrbuilder](https://github.com/wbond/csrbuilder)
|
||||
- [certbuilder](https://github.com/wbond/certbuilder)
|
||||
- [crlbuilder](https://github.com/wbond/crlbuilder)
|
||||
- [ocspbuilder](https://github.com/wbond/ocspbuilder)
|
||||
- [certvalidator](https://github.com/wbond/certvalidator)
|
||||
|
||||
## Current Release
|
||||
|
||||
1.5.0 - [changelog](changelog.md)
|
||||
|
||||
## Dependencies
|
||||
|
||||
Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 or pypy. *No third-party
|
||||
packages required.*
|
||||
|
||||
## Installation
|
||||
|
||||
```bash
|
||||
pip install asn1crypto
|
||||
```
|
||||
|
||||
## License
|
||||
|
||||
*asn1crypto* is licensed under the terms of the MIT license. See the
|
||||
[LICENSE](LICENSE) file for the exact license text.
|
||||
|
||||
## Security Policy
|
||||
|
||||
The security policies for this project are covered in
|
||||
[SECURITY.md](https://github.com/wbond/asn1crypto/blob/master/SECURITY.md).
|
||||
|
||||
## Documentation
|
||||
|
||||
The documentation for *asn1crypto* is composed of tutorials on basic usage and
|
||||
links to the source for the various pre-defined type classes.
|
||||
|
||||
### Tutorials
|
||||
|
||||
- [Universal Types with BER/DER Decoder and DER Encoder](docs/universal_types.md)
|
||||
- [PEM Encoder and Decoder](docs/pem.md)
|
||||
|
||||
### Reference
|
||||
|
||||
- [Universal types](asn1crypto/core.py), `asn1crypto.core`
|
||||
- [Digest, HMAC, signed digest and encryption algorithms](asn1crypto/algos.py), `asn1crypto.algos`
|
||||
- [Private and public keys](asn1crypto/keys.py), `asn1crypto.keys`
|
||||
- [X509 certificates](asn1crypto/x509.py), `asn1crypto.x509`
|
||||
- [Certificate revocation lists (CRLs)](asn1crypto/crl.py), `asn1crypto.crl`
|
||||
- [Online certificate status protocol (OCSP)](asn1crypto/ocsp.py), `asn1crypto.ocsp`
|
||||
- [Certificate signing requests (CSRs)](asn1crypto/csr.py), `asn1crypto.csr`
|
||||
- [Private key/certificate containers (PKCS#12)](asn1crypto/pkcs12.py), `asn1crypto.pkcs12`
|
||||
- [Cryptographic message syntax (CMS, PKCS#7)](asn1crypto/cms.py), `asn1crypto.cms`
|
||||
- [Time stamp protocol (TSP)](asn1crypto/tsp.py), `asn1crypto.tsp`
|
||||
- [PDF signatures](asn1crypto/pdf.py), `asn1crypto.pdf`
|
||||
|
||||
## Continuous Integration
|
||||
|
||||
Various combinations of platforms and versions of Python are tested via:
|
||||
|
||||
- [macOS, Linux, Windows](https://github.com/wbond/asn1crypto/actions/workflows/ci.yml) via GitHub Actions
|
||||
- [arm64](https://circleci.com/gh/wbond/asn1crypto) via CircleCI
|
||||
|
||||
## Testing
|
||||
|
||||
Tests are written using `unittest` and require no third-party packages.
|
||||
|
||||
Depending on what type of source is available for the package, the following
|
||||
commands can be used to run the test suite.
|
||||
|
||||
### Git Repository
|
||||
|
||||
When working within a Git working copy, or an archive of the Git repository,
|
||||
the full test suite is run via:
|
||||
|
||||
```bash
|
||||
python run.py tests
|
||||
```
|
||||
|
||||
To run only some tests, pass a regular expression as a parameter to `tests`.
|
||||
|
||||
```bash
|
||||
python run.py tests ocsp
|
||||
```
|
||||
|
||||
### PyPi Source Distribution
|
||||
|
||||
When working within an extracted source distribution (aka `.tar.gz`) from
|
||||
PyPi, the full test suite is run via:
|
||||
|
||||
```bash
|
||||
python setup.py test
|
||||
```
|
||||
|
||||
### Package
|
||||
|
||||
When the package has been installed via pip (or another method), the package
|
||||
`asn1crypto_tests` may be installed and invoked to run the full test suite:
|
||||
|
||||
```bash
|
||||
pip install asn1crypto_tests
|
||||
python -m asn1crypto_tests
|
||||
```
|
||||
|
||||
## Development
|
||||
|
||||
To install the package used for linting, execute:
|
||||
|
||||
```bash
|
||||
pip install --user -r requires/lint
|
||||
```
|
||||
|
||||
The following command will run the linter:
|
||||
|
||||
```bash
|
||||
python run.py lint
|
||||
```
|
||||
|
||||
Support for code coverage can be installed via:
|
||||
|
||||
```bash
|
||||
pip install --user -r requires/coverage
|
||||
```
|
||||
|
||||
Coverage is measured by running:
|
||||
|
||||
```bash
|
||||
python run.py coverage
|
||||
```
|
||||
|
||||
To change the version number of the package, run:
|
||||
|
||||
```bash
|
||||
python run.py version {pep440_version}
|
||||
```
|
||||
|
||||
To install the necessary packages for releasing a new version on PyPI, run:
|
||||
|
||||
```bash
|
||||
pip install --user -r requires/release
|
||||
```
|
||||
|
||||
Releases are created by:
|
||||
|
||||
- Making a git tag in [PEP 440](https://www.python.org/dev/peps/pep-0440/#examples-of-compliant-version-schemes) format
|
||||
- Running the command:
|
||||
|
||||
```bash
|
||||
python run.py release
|
||||
```
|
||||
|
||||
Existing releases can be found at https://pypi.org/project/asn1crypto/.
|
||||
|
||||
## CI Tasks
|
||||
|
||||
A task named `deps` exists to download and stage all necessary testing
|
||||
dependencies. On posix platforms, `curl` is used for downloads and on Windows
|
||||
PowerShell with `Net.WebClient` is used. This configuration sidesteps issues
|
||||
related to getting pip to work properly and messing with `site-packages` for
|
||||
the version of Python being used.
|
||||
|
||||
The `ci` task runs `lint` (if flake8 is available for the version of Python) and
|
||||
`coverage` (or `tests` if coverage is not available for the version of Python).
|
||||
If the current directory is a clean git working copy, the coverage data is
|
||||
submitted to codecov.io.
|
||||
|
||||
```bash
|
||||
python run.py deps
|
||||
python run.py ci
|
||||
```
|
||||
|
||||
Keywords: asn1 crypto pki x509 certificate rsa dsa ec dh
|
||||
Platform: UNKNOWN
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: MIT License
|
||||
Classifier: Programming Language :: Python
|
||||
Classifier: Programming Language :: Python :: 2
|
||||
Classifier: Programming Language :: Python :: 2.6
|
||||
Classifier: Programming Language :: Python :: 2.7
|
||||
Classifier: Programming Language :: Python :: 3
|
||||
Classifier: Programming Language :: Python :: 3.2
|
||||
Classifier: Programming Language :: Python :: 3.3
|
||||
Classifier: Programming Language :: Python :: 3.4
|
||||
Classifier: Programming Language :: Python :: 3.5
|
||||
Classifier: Programming Language :: Python :: 3.6
|
||||
Classifier: Programming Language :: Python :: 3.7
|
||||
Classifier: Programming Language :: Python :: 3.8
|
||||
Classifier: Programming Language :: Python :: 3.9
|
||||
Classifier: Programming Language :: Python :: 3.10
|
||||
Classifier: Programming Language :: Python :: Implementation :: CPython
|
||||
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
||||
Classifier: Topic :: Security :: Cryptography
|
||||
Description-Content-Type: text/markdown
|
||||
@ -0,0 +1,37 @@
|
||||
# Security Policy
|
||||
|
||||
## How to Report
|
||||
|
||||
If you believe you've found an issue that has security implications, please do
|
||||
not post a public issue on GitHub. Instead, email the project lead, Will Bond,
|
||||
at will@wbond.net.
|
||||
|
||||
You should receive a response within two business days, and follow up emails
|
||||
during the process of confirming the potential issue.
|
||||
|
||||
## Supported Versions
|
||||
|
||||
The asn1crypto project only provides security patches for the most recent
|
||||
release. This is primarily a function of available resources.
|
||||
|
||||
## Disclosure Process
|
||||
|
||||
The following process is used when handling a potential secuirty issue:
|
||||
|
||||
1. The report should be emailed to will@wbond.net, and NOT posted on the
|
||||
GitHub issue tracker.
|
||||
2. Confirmation of receipt of the report should happen within two business
|
||||
days.
|
||||
3. Information will be collected and an investigation will be performed to
|
||||
determine if a security issue exists.
|
||||
4. If no security issue is found, the process will end.
|
||||
5. A fix for the issue and announcement will be drafted.
|
||||
6. A release schedule and accouncement will be negotiated between the
|
||||
reporter and the project
|
||||
7. The security contacts for Arch Linux, Conda, Debian, Fedora, FreeBSD,
|
||||
Ubuntu, and Tidelift will be contacted to notify them of an upcoming
|
||||
security release.
|
||||
8. Fixes for all vulnerabilities will be performed, and new releases made,
|
||||
but without mention of a security issue. These changes and releases will
|
||||
be published before the announcement.
|
||||
9. An announcement will be made disclosing the vulnerability and the fix.
|
||||
@ -30,6 +30,7 @@ from .algos import (
|
||||
_ForceNullParameters,
|
||||
DigestAlgorithm,
|
||||
EncryptionAlgorithm,
|
||||
EncryptionAlgorithmId,
|
||||
HmacAlgorithm,
|
||||
KdfAlgorithm,
|
||||
RSAESOAEPParams,
|
||||
@ -100,6 +101,8 @@ class CMSAttributeType(ObjectIdentifier):
|
||||
'1.2.840.113549.1.9.4': 'message_digest',
|
||||
'1.2.840.113549.1.9.5': 'signing_time',
|
||||
'1.2.840.113549.1.9.6': 'counter_signature',
|
||||
# https://datatracker.ietf.org/doc/html/rfc2633#section-2.5.2
|
||||
'1.2.840.113549.1.9.15': 'smime_capabilities',
|
||||
# https://tools.ietf.org/html/rfc2633#page-26
|
||||
'1.2.840.113549.1.9.16.2.11': 'encrypt_key_pref',
|
||||
# https://tools.ietf.org/html/rfc3161#page-20
|
||||
@ -273,7 +276,7 @@ class V2Form(Sequence):
|
||||
class AttCertIssuer(Choice):
|
||||
_alternatives = [
|
||||
('v1_form', GeneralNames),
|
||||
('v2_form', V2Form, {'explicit': 0}),
|
||||
('v2_form', V2Form, {'implicit': 0}),
|
||||
]
|
||||
|
||||
|
||||
@ -315,7 +318,7 @@ class SetOfSvceAuthInfo(SetOf):
|
||||
class RoleSyntax(Sequence):
|
||||
_fields = [
|
||||
('role_authority', GeneralNames, {'implicit': 0, 'optional': True}),
|
||||
('role_name', GeneralName, {'implicit': 1}),
|
||||
('role_name', GeneralName, {'explicit': 1}),
|
||||
]
|
||||
|
||||
|
||||
@ -337,7 +340,7 @@ class ClassList(BitString):
|
||||
class SecurityCategory(Sequence):
|
||||
_fields = [
|
||||
('type', ObjectIdentifier, {'implicit': 0}),
|
||||
('value', Any, {'implicit': 1}),
|
||||
('value', Any, {'explicit': 1}),
|
||||
]
|
||||
|
||||
|
||||
@ -347,9 +350,9 @@ class SetOfSecurityCategory(SetOf):
|
||||
|
||||
class Clearance(Sequence):
|
||||
_fields = [
|
||||
('policy_id', ObjectIdentifier, {'implicit': 0}),
|
||||
('class_list', ClassList, {'implicit': 1, 'default': 'unclassified'}),
|
||||
('security_categories', SetOfSecurityCategory, {'implicit': 2, 'optional': True}),
|
||||
('policy_id', ObjectIdentifier),
|
||||
('class_list', ClassList, {'default': set(['unclassified'])}),
|
||||
('security_categories', SetOfSecurityCategory, {'optional': True}),
|
||||
]
|
||||
|
||||
|
||||
@ -946,6 +949,21 @@ class SMIMEEncryptionKeyPreferences(SetOf):
|
||||
_child_spec = SMIMEEncryptionKeyPreference
|
||||
|
||||
|
||||
class SMIMECapabilityIdentifier(Sequence):
|
||||
_fields = [
|
||||
('capability_id', EncryptionAlgorithmId),
|
||||
('parameters', Any, {'optional': True}),
|
||||
]
|
||||
|
||||
|
||||
class SMIMECapabilites(SequenceOf):
|
||||
_child_spec = SMIMECapabilityIdentifier
|
||||
|
||||
|
||||
class SetOfSMIMECapabilites(SetOf):
|
||||
_child_spec = SMIMECapabilites
|
||||
|
||||
|
||||
ContentInfo._oid_specs = {
|
||||
'data': OctetString,
|
||||
'signed_data': SignedData,
|
||||
@ -981,4 +999,5 @@ CMSAttribute._oid_specs = {
|
||||
'microsoft_nested_signature': SetOfContentInfo,
|
||||
'microsoft_time_stamp_token': SetOfContentInfo,
|
||||
'encrypt_key_pref': SMIMEEncryptionKeyPreferences,
|
||||
'smime_capabilities': SetOfSMIMECapabilites,
|
||||
}
|
||||
|
||||
@ -4113,6 +4113,10 @@ class Sequence(Asn1Value):
|
||||
if self._header is not None and self._header[-1:] == b'\x80':
|
||||
force = True
|
||||
|
||||
# We can't force encoding if we don't have a spec
|
||||
if force and self._fields == [] and self.__class__ is Sequence:
|
||||
force = False
|
||||
|
||||
if force:
|
||||
self._set_contents(force=force)
|
||||
|
||||
|
||||
@ -752,7 +752,7 @@ class PrivateKeyInfo(Sequence):
|
||||
type_name(private_key)
|
||||
))
|
||||
|
||||
if algorithm == 'rsa':
|
||||
if algorithm == 'rsa' or algorithm == 'rsassa_pss':
|
||||
if not isinstance(private_key, RSAPrivateKey):
|
||||
private_key = RSAPrivateKey.load(private_key)
|
||||
params = Null()
|
||||
@ -893,7 +893,7 @@ class PrivateKeyInfo(Sequence):
|
||||
def algorithm(self):
|
||||
"""
|
||||
:return:
|
||||
A unicode string of "rsa", "dsa" or "ec"
|
||||
A unicode string of "rsa", "rsassa_pss", "dsa" or "ec"
|
||||
"""
|
||||
|
||||
if self._algorithm is None:
|
||||
@ -908,7 +908,7 @@ class PrivateKeyInfo(Sequence):
|
||||
"""
|
||||
|
||||
if self._bit_size is None:
|
||||
if self.algorithm == 'rsa':
|
||||
if self.algorithm == 'rsa' or self.algorithm == 'rsassa_pss':
|
||||
prime = self['private_key'].parsed['modulus'].native
|
||||
elif self.algorithm == 'dsa':
|
||||
prime = self['private_key_algorithm']['parameters']['p'].native
|
||||
@ -1120,7 +1120,7 @@ class PublicKeyInfo(Sequence):
|
||||
type_name(public_key)
|
||||
))
|
||||
|
||||
if algorithm != 'rsa':
|
||||
if algorithm != 'rsa' and algorithm != 'rsassa_pss':
|
||||
raise ValueError(unwrap(
|
||||
'''
|
||||
algorithm must "rsa", not %s
|
||||
@ -1222,7 +1222,7 @@ class PublicKeyInfo(Sequence):
|
||||
def algorithm(self):
|
||||
"""
|
||||
:return:
|
||||
A unicode string of "rsa", "dsa" or "ec"
|
||||
A unicode string of "rsa", "rsassa_pss", "dsa" or "ec"
|
||||
"""
|
||||
|
||||
if self._algorithm is None:
|
||||
@ -1240,7 +1240,7 @@ class PublicKeyInfo(Sequence):
|
||||
if self.algorithm == 'ec':
|
||||
self._bit_size = int(((len(self['public_key'].native) - 1) / 2) * 8)
|
||||
else:
|
||||
if self.algorithm == 'rsa':
|
||||
if self.algorithm == 'rsa' or self.algorithm == 'rsassa_pss':
|
||||
prime = self['public_key'].parsed['modulus'].native
|
||||
elif self.algorithm == 'dsa':
|
||||
prime = self['algorithm']['parameters']['p'].native
|
||||
|
||||
@ -2,5 +2,5 @@
|
||||
from __future__ import unicode_literals, division, absolute_import, print_function
|
||||
|
||||
|
||||
__version__ = '1.4.0'
|
||||
__version_info__ = (1, 4, 0)
|
||||
__version__ = '1.5.1'
|
||||
__version_info__ = (1, 5, 1)
|
||||
|
||||
@ -1,5 +1,43 @@
|
||||
# changelog
|
||||
|
||||
## 1.5.1
|
||||
|
||||
- Handle RSASSA-PSS in `keys.PrivateKeyInfo.bit_size` and
|
||||
`keys.PublicKeyInfo.bit_size`
|
||||
- Handle RSASSA-PSS in `keys.PrivateKeyInfo.wrap` and
|
||||
`keys.PublicKeyInfo.wrap`
|
||||
- Updated docs for `keys.PrivateKeyInfo.algorithm` and
|
||||
`keys.PublicKeyInfo.algorithm` to reflect that they can return
|
||||
`"rsassa_pss"`
|
||||
|
||||
## 1.5.0
|
||||
|
||||
- Fix `tsp.TimeStampAndCRL` to be a `core.Sequence` instead of a
|
||||
`core.SequenceOf` *via @joernheissler*
|
||||
- Added OIDs for Edwards curves from RFC 8410 - via @MatthiasValvekens
|
||||
- Fixed convenience attributes on `algos.EncryptionAlgorithm` when the
|
||||
algorithm is RC2 *via @joernheissler*
|
||||
- Added Microsoft OIDs `microsoft_enrollment_csp_provider`
|
||||
(`1.3.6.1.4.1.311.13.2.2`), `microsoft_os_version`
|
||||
(`1.3.6.1.4.1.311.13.2.3`) and `microsoft_request_client_info`
|
||||
(`1.3.6.1.4.1.311.21.20`)
|
||||
to `csr.CSRAttributeType` along with supporting extension structures
|
||||
*via @qha*
|
||||
- Added Microsoft OID `microsoft_enroll_certtype` (`1.3.6.1.4.1.311.20.2`)
|
||||
to `x509.ExtensionId` *via @qha*
|
||||
- Fixed a few bugs with parsing indefinite-length encodings *via @davidben*
|
||||
- Added various bounds checks to parsing engine *via @davidben*
|
||||
- Fixed a bug with tags not always being minimally encoded *via @davidben*
|
||||
- Fixed `cms.RoleSyntax`, `cms.SecurityCategory` and `cms.AttCertIssuer` to
|
||||
have explicit instead of implicit tagging *via @MatthiasValvekens*
|
||||
- Fixed tagging of, and default value for fields in `cms.Clearance` *via
|
||||
@MatthiasValvekens*
|
||||
- Fixed calling `.dump(force=True)` when the value has undefined/unknown
|
||||
`core.Sequence` fields. Previously the value would be truncated, now
|
||||
the existing encoding is preserved.
|
||||
- Added sMIME capabilities (`1.2.840.113549.1.9.15`) support from RFC 2633
|
||||
to `cms.CMSAttribute` *via Hellzed*
|
||||
|
||||
## 1.4.0
|
||||
|
||||
- `core.ObjectIdentifier` and all derived classes now obey X.660 §7.6 and
|
||||
|
||||
@ -0,0 +1,79 @@
|
||||
# PEM Decoder and Encoder
|
||||
|
||||
Often times DER-encoded data is wrapped in PEM encoding. This allows the binary
|
||||
DER data to be identified and reliably sent over various communication channels.
|
||||
|
||||
The `asn1crypto.pem` module includes three functions:
|
||||
|
||||
- `detect(byte_string)`
|
||||
- `unarmor(pem_bytes, multiple=False)`
|
||||
- `armor(type_name, der_bytes, headers=None)`
|
||||
|
||||
## detect()
|
||||
|
||||
The `detect()` function accepts a byte string and looks for a `BEGIN` block
|
||||
line. This is useful to determine in a byte string needs to be PEM-decoded
|
||||
before parsing.
|
||||
|
||||
```python
|
||||
from asn1crypto import pem, x509
|
||||
|
||||
with open('/path/to/cert', 'rb') as f:
|
||||
der_bytes = f.read()
|
||||
if pem.detect(der_bytes):
|
||||
_, _, der_bytes = pem.unarmor(der_bytes)
|
||||
```
|
||||
|
||||
## unarmor()
|
||||
|
||||
The `unarmor()` function accepts a byte string and the flag to indicates if
|
||||
more than one PEM block may be contained in the byte string. The result is
|
||||
a three-element tuple.
|
||||
|
||||
- The first element is a unicode string of the type of PEM block. Examples
|
||||
include: `CERTIFICATE`, `PRIVATE KEY`, `PUBLIC KEY`.
|
||||
- The second element is a `dict` of PEM block headers. Headers are typically
|
||||
only used by encrypted OpenSSL private keys, and are in the format
|
||||
`Name: Value`.
|
||||
- The third element is a byte string of the decoded block contents.
|
||||
|
||||
```python
|
||||
from asn1crypto import pem, x509
|
||||
|
||||
with open('/path/to/cert', 'rb') as f:
|
||||
der_bytes = f.read()
|
||||
if pem.detect(der_bytes):
|
||||
type_name, headers, der_bytes = pem.unarmor(der_bytes)
|
||||
|
||||
cert = x509.Certificate.load(der_bytes)
|
||||
```
|
||||
|
||||
If the `multiple` keyword argument is set to `True`, a generator will be
|
||||
returned.
|
||||
|
||||
```python
|
||||
from asn1crypto import pem, x509
|
||||
|
||||
certs = []
|
||||
with open('/path/to/ca_certs', 'rb') as f:
|
||||
for type_name, headers, der_bytes in pem.unarmor(f.read(), multiple=True):
|
||||
certs.append(x509.Certificate.load(der_bytes))
|
||||
```
|
||||
|
||||
## armor()
|
||||
|
||||
The `armor()` function accepts three parameters: a unicode string of the block
|
||||
type name, a byte string to encode and an optional keyword argument `headers`,
|
||||
that should be a `dict` of headers to add after the `BEGIN` line. Headers are
|
||||
typically only used by encrypted OpenSSL private keys.
|
||||
|
||||
```python
|
||||
from asn1crypto import pem, x509
|
||||
|
||||
# cert is an instance of x509.Certificate
|
||||
|
||||
with open('/path/to/cert', 'wb') as f:
|
||||
der_bytes = cert.dump()
|
||||
pem_bytes = pem.armor('CERTIFICATE', der_bytes)
|
||||
f.write(pem_bytes)
|
||||
```
|
||||
@ -0,0 +1,23 @@
|
||||
# asn1crypto Documentation
|
||||
|
||||
The documentation for *asn1crypto* is composed of tutorials on basic usage and
|
||||
links to the source for the various pre-defined type classes.
|
||||
|
||||
## Tutorials
|
||||
|
||||
- [Universal Types with BER/DER Decoder and DER Encoder](universal_types.md)
|
||||
- [PEM Decoder and Encoder](pem.md)
|
||||
|
||||
## Reference
|
||||
|
||||
- [Universal types](../asn1crypto/core.py), `asn1crypto.core`
|
||||
- [Digest, HMAC, signed digest and encryption algorithms](../asn1crypto/algos.py), `asn1crypto.algos`
|
||||
- [Private and public keys](../asn1crypto/keys.py), `asn1crypto.keys`
|
||||
- [X.509 certificates](../asn1crypto/x509.py), `asn1crypto.x509`
|
||||
- [Certificate revocation lists (CRLs)](../asn1crypto/crl.py), `asn1crypto.crl`
|
||||
- [Online certificate status protocol (OCSP)](../asn1crypto/ocsp.py), `asn1crypto.ocsp`
|
||||
- [Certificate signing requests (CSRs)](../asn1crypto/csr.py), `asn1crypto.csr`
|
||||
- [Private key/certificate containers (PKCS#12)](../asn1crypto/pkcs12.py), `asn1crypto.pkcs12`
|
||||
- [Cryptographic message syntax (CMS, PKCS#7)](../asn1crypto/cms.py), `asn1crypto.cms`
|
||||
- [Time stamp protocol (TSP)](../asn1crypto/tsp.py), `asn1crypto.tsp`
|
||||
- [PDF signatures](../asn1crypto/pdf.py), `asn1crypto.pdf`
|
||||
@ -0,0 +1,675 @@
|
||||
# Universal Types with BER/DER Decoder and DER Encoder
|
||||
|
||||
The *asn1crypto* library is a combination of universal type classes that
|
||||
implement BER/DER decoding and DER encoding, a PEM encoder and decoder, and a
|
||||
number of pre-built cryptographic type classes. This document covers the
|
||||
universal type classes.
|
||||
|
||||
For a general overview of ASN.1 as used in cryptography, please see
|
||||
[A Layman's Guide to a Subset of ASN.1, BER, and DER](http://luca.ntop.org/Teaching/Appunti/asn1.html).
|
||||
|
||||
This page contains the following sections:
|
||||
|
||||
- [Universal Types](#universal-types)
|
||||
- [Basic Usage](#basic-usage)
|
||||
- [Sequence](#sequence)
|
||||
- [Set](#set)
|
||||
- [SequenceOf](#sequenceof)
|
||||
- [SetOf](#setof)
|
||||
- [Integer](#integer)
|
||||
- [Enumerated](#enumerated)
|
||||
- [ObjectIdentifier](#objectidentifier)
|
||||
- [BitString](#bitstring)
|
||||
- [Strings](#strings)
|
||||
- [UTCTime](#utctime)
|
||||
- [GeneralizedTime](#generalizedtime)
|
||||
- [Choice](#choice)
|
||||
- [Any](#any)
|
||||
- [Specification via OID](#specification-via-oid)
|
||||
- [Explicit and Implicit Tagging](#explicit-and-implicit-tagging)
|
||||
|
||||
## Universal Types
|
||||
|
||||
For general purpose ASN.1 parsing, the `asn1crypto.core` module is used. It
|
||||
contains the following classes, that parse, represent and serialize all of the
|
||||
ASN.1 universal types:
|
||||
|
||||
| Class | Native Type | Implementation Notes |
|
||||
| ------------------ | -------------------------------------- | ------------------------------------ |
|
||||
| `Boolean` | `bool` | |
|
||||
| `Integer` | `int` | may be `long` on Python 2 |
|
||||
| `BitString` | `tuple` of `int` or `set` of `unicode` | `set` used if `_map` present |
|
||||
| `OctetString` | `bytes` (`str`) | |
|
||||
| `Null` | `None` | |
|
||||
| `ObjectIdentifier` | `str` (`unicode`) | string is dotted integer format |
|
||||
| `ObjectDescriptor` | | no native conversion |
|
||||
| `InstanceOf` | | no native conversion |
|
||||
| `Real` | | no native conversion |
|
||||
| `Enumerated` | `str` (`unicode`) | `_map` must be set |
|
||||
| `UTF8String` | `str` (`unicode`) | |
|
||||
| `RelativeOid` | `str` (`unicode`) | string is dotted integer format |
|
||||
| `Sequence` | `OrderedDict` | |
|
||||
| `SequenceOf` | `list` | |
|
||||
| `Set` | `OrderedDict` | |
|
||||
| `SetOf` | `list` | |
|
||||
| `EmbeddedPdv` | `OrderedDict` | no named field parsing |
|
||||
| `NumericString` | `str` (`unicode`) | no charset limitations |
|
||||
| `PrintableString` | `str` (`unicode`) | no charset limitations |
|
||||
| `TeletexString` | `str` (`unicode`) | |
|
||||
| `VideotexString` | `bytes` (`str`) | no unicode conversion |
|
||||
| `IA5String` | `str` (`unicode`) | |
|
||||
| `UTCTime` | `datetime.datetime` | |
|
||||
| `GeneralizedTime` | `datetime.datetime` | treated as UTC when no timezone |
|
||||
| `GraphicString` | `str` (`unicode`) | unicode conversion as latin1 |
|
||||
| `VisibleString` | `str` (`unicode`) | no charset limitations |
|
||||
| `GeneralString` | `str` (`unicode`) | unicode conversion as latin1 |
|
||||
| `UniversalString` | `str` (`unicode`) | |
|
||||
| `CharacterString` | `str` (`unicode`) | unicode conversion as latin1 |
|
||||
| `BMPString` | `str` (`unicode`) | |
|
||||
|
||||
For *Native Type*, the Python 3 type is listed first, with the Python 2 type
|
||||
in parentheses.
|
||||
|
||||
As mentioned next to some of the types, value parsing may not be implemented
|
||||
for types not currently used in cryptography (such as `ObjectDescriptor`,
|
||||
`InstanceOf` and `Real`). Additionally some of the string classes don't
|
||||
enforce character set limitations, and for some string types that accept all
|
||||
different encodings, the default encoding is set to latin1.
|
||||
|
||||
In addition, there are a few overridden types where various specifications use
|
||||
a `BitString` or `OctetString` type to represent a different type. These
|
||||
include:
|
||||
|
||||
| Class | Native Type | Implementation Notes |
|
||||
| -------------------- | ------------------- | ------------------------------- |
|
||||
| `OctetBitString` | `bytes` (`str`) | |
|
||||
| `IntegerBitString` | `int` | may be `long` on Python 2 |
|
||||
| `IntegerOctetString` | `int` | may be `long` on Python 2 |
|
||||
|
||||
For situations where the DER encoded bytes from one type is embedded in another,
|
||||
the `ParsableOctetString` and `ParsableOctetBitString` classes exist. These
|
||||
function the same as `OctetString` and `OctetBitString`, however they also
|
||||
have an attribute `.parsed` and a method `.parse()` that allows for
|
||||
parsing the content as ASN.1 structures.
|
||||
|
||||
All of these overrides can be used with the `cast()` method to convert between
|
||||
them. The only requirement is that the class being casted to has the same tag
|
||||
as the original class. No re-encoding is done, rather the contents are simply
|
||||
re-interpreted.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import BitString, OctetBitString, IntegerBitString
|
||||
|
||||
bit = BitString((
|
||||
0, 0, 0, 0, 0, 0, 0, 1,
|
||||
0, 0, 0, 0, 0, 0, 1, 0,
|
||||
))
|
||||
|
||||
# Will print (0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0)
|
||||
print(bit.native)
|
||||
|
||||
octet = bit.cast(OctetBitString)
|
||||
|
||||
# Will print b'\x01\x02'
|
||||
print(octet.native)
|
||||
|
||||
i = bit.cast(IntegerBitString)
|
||||
|
||||
# Will print 258
|
||||
print(i.native)
|
||||
```
|
||||
|
||||
## Basic Usage
|
||||
|
||||
All of the universal types implement four methods, a class method `.load()` and
|
||||
the instance methods `.dump()`, `.copy()` and `.debug()`.
|
||||
|
||||
`.load()` accepts a byte string of DER or BER encoded data and returns an
|
||||
object of the class it was called on. `.dump()` returns the serialization of
|
||||
an object into DER encoding.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence
|
||||
|
||||
parsed = Sequence.load(der_byte_string)
|
||||
serialized = parsed.dump()
|
||||
```
|
||||
|
||||
By default, *asn1crypto* tries to be efficient and caches serialized data for
|
||||
better performance. If the input data is possibly BER encoded, but the output
|
||||
must be DER encoded, the `force` parameter may be used with `.dump()`.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence
|
||||
|
||||
parsed = Sequence.load(der_byte_string)
|
||||
der_serialized = parsed.dump(force=True)
|
||||
```
|
||||
|
||||
The `.copy()` method creates a deep copy of an object, allowing child fields to
|
||||
be modified without affecting the original.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence
|
||||
|
||||
seq1 = Sequence.load(der_byte_string)
|
||||
seq2 = seq1.copy()
|
||||
seq2[0] = seq1[0] + 1
|
||||
if seq1[0] != seq2[0]:
|
||||
print('Copies have distinct contents')
|
||||
```
|
||||
|
||||
The `.debug()` method is available to help in situations where interaction with
|
||||
another ASN.1 serializer or parsing is not functioning as expected. Calling
|
||||
this method will print a tree structure with information about the header bytes,
|
||||
class, method, tag, special tagging, content bytes, native Python value, child
|
||||
fields and any sub-parsed values.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence
|
||||
|
||||
parsed = Sequence.load(der_byte_string)
|
||||
parsed.debug()
|
||||
```
|
||||
|
||||
In addition to the available methods, every instance has a `.native` property
|
||||
that converts the data into a native Python data type.
|
||||
|
||||
```python
|
||||
import pprint
|
||||
from asn1crypto.core import Sequence
|
||||
|
||||
parsed = Sequence.load(der_byte_string)
|
||||
pprint(parsed.native)
|
||||
```
|
||||
|
||||
## Sequence
|
||||
|
||||
One of the core structures when dealing with ASN.1 is the Sequence type. The
|
||||
`Sequence` class can handle field with universal data types, however in most
|
||||
situations the `_fields` property will need to be set with the expected
|
||||
definition of each field in the Sequence.
|
||||
|
||||
### Configuration
|
||||
|
||||
The `_fields` property must be set to a `list` of 2-3 element `tuple`s. The
|
||||
first element in the tuple must be a unicode string of the field name. The
|
||||
second must be a type class - either a universal type, or a custom type. The
|
||||
third, and optional, element is a `dict` with parameters to pass to the type
|
||||
class for things like default values, marking the field as optional, or
|
||||
implicit/explicit tagging.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence, Integer, OctetString, IA5String
|
||||
|
||||
class MySequence(Sequence):
|
||||
_fields = [
|
||||
('field_one', Integer),
|
||||
('field_two', OctetString),
|
||||
('field_three', IA5String, {'optional': True}),
|
||||
]
|
||||
```
|
||||
|
||||
Implicit and explicit tagging will be covered in more detail later, however
|
||||
the following are options that can be set for each field type class:
|
||||
|
||||
- `{'default: 1}` sets the field's default value to `1`, allowing it to be
|
||||
omitted from the serialized form
|
||||
- `{'optional': True}` set the field to be optional, allowing it to be
|
||||
omitted
|
||||
|
||||
### Usage
|
||||
|
||||
To access values of the sequence, use dict-like access via `[]` and use the
|
||||
name of the field:
|
||||
|
||||
```python
|
||||
seq = MySequence.load(der_byte_string)
|
||||
print(seq['field_two'].native)
|
||||
```
|
||||
|
||||
The values of fields can be set by assigning via `[]`. If the value assigned is
|
||||
of the correct type class, it will be used as-is. If the value is not of the
|
||||
correct type class, a new instance of that type class will be created and the
|
||||
value will be passed to the constructor.
|
||||
|
||||
```python
|
||||
seq = MySequence.load(der_byte_string)
|
||||
# These statements will result in the same state
|
||||
seq['field_one'] = Integer(5)
|
||||
seq['field_one'] = 5
|
||||
```
|
||||
|
||||
When fields are complex types such as `Sequence` or `SequenceOf`, there is no
|
||||
way to construct the value out of a native Python data type.
|
||||
|
||||
### Optional Fields
|
||||
|
||||
When a field is configured via the `optional` parameter, not present in the
|
||||
`Sequence`, but accessed, the `VOID` object will be returned. This is an object
|
||||
that is serialized to an empty byte string and returns `None` when `.native` is
|
||||
accessed.
|
||||
|
||||
## Set
|
||||
|
||||
The `Set` class is configured in the same was as `Sequence`, however it allows
|
||||
serialized fields to be in any order, per the ASN.1 standard.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Set, Integer, OctetString, IA5String
|
||||
|
||||
class MySet(Set):
|
||||
_fields = [
|
||||
('field_one', Integer),
|
||||
('field_two', OctetString),
|
||||
('field_three', IA5String, {'optional': True}),
|
||||
]
|
||||
```
|
||||
|
||||
## SequenceOf
|
||||
|
||||
The `SequenceOf` class is used to allow for zero or more instances of a type.
|
||||
The class uses the `_child_spec` property to define the instance class type.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import SequenceOf, Integer
|
||||
|
||||
class Integers(SequenceOf):
|
||||
_child_spec = Integer
|
||||
```
|
||||
|
||||
Values in the `SequenceOf` can be accessed via `[]` with an integer key. The
|
||||
length of the `SequenceOf` is determined via `len()`.
|
||||
|
||||
```python
|
||||
values = Integers.load(der_byte_string)
|
||||
for i in range(0, len(values)):
|
||||
print(values[i].native)
|
||||
```
|
||||
|
||||
## SetOf
|
||||
|
||||
The `SetOf` class is an exact duplicate of `SequenceOf`. According to the ASN.1
|
||||
standard, the difference is that a `SequenceOf` is explicitly ordered, however
|
||||
`SetOf` may be in any order. This is an equivalent comparison of a Python `list`
|
||||
and `set`.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import SetOf, Integer
|
||||
|
||||
class Integers(SetOf):
|
||||
_child_spec = Integer
|
||||
```
|
||||
|
||||
## Integer
|
||||
|
||||
The `Integer` class allows values to be *named*. An `Integer` with named values
|
||||
may contain any integer, however special values with named will be represented
|
||||
as those names when `.native` is called.
|
||||
|
||||
Named values are configured via the `_map` property, which must be a `dict`
|
||||
with the keys being integers and the values being unicode strings.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Integer
|
||||
|
||||
class Version(Integer):
|
||||
_map = {
|
||||
1: 'v1',
|
||||
2: 'v2',
|
||||
}
|
||||
|
||||
# Will print: "v1"
|
||||
print(Version(1).native)
|
||||
|
||||
# Will print: 4
|
||||
print(Version(4).native)
|
||||
```
|
||||
|
||||
## Enumerated
|
||||
|
||||
The `Enumerated` class is almost identical to `Integer`, however only values in
|
||||
the `_map` property are valid.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Enumerated
|
||||
|
||||
class Version(Enumerated):
|
||||
_map = {
|
||||
1: 'v1',
|
||||
2: 'v2',
|
||||
}
|
||||
|
||||
# Will print: "v1"
|
||||
print(Version(1).native)
|
||||
|
||||
# Will raise a ValueError exception
|
||||
print(Version(4).native)
|
||||
```
|
||||
|
||||
## ObjectIdentifier
|
||||
|
||||
The `ObjectIdentifier` class represents values of the ASN.1 type of the same
|
||||
name. `ObjectIdentifier` instances are converted to a unicode string in a
|
||||
dotted-integer format when `.native` is accessed.
|
||||
|
||||
While this standard conversion is a reasonable baseline, in most situations
|
||||
it will be more maintainable to map the OID strings to a unicode string
|
||||
containing a description of what the OID repesents.
|
||||
|
||||
The mapping of OID strings to name strings is configured via the `_map`
|
||||
property, which is a `dict` object with keys being unicode OID string and the
|
||||
values being a unicode string.
|
||||
|
||||
The `.dotted` attribute will always return a unicode string of the dotted
|
||||
integer form of the OID.
|
||||
|
||||
The class methods `.map()` and `.unmap()` will convert a dotted integer unicode
|
||||
string to the user-friendly name, and vice-versa.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import ObjectIdentifier
|
||||
|
||||
class MyType(ObjectIdentifier):
|
||||
_map = {
|
||||
'1.8.2.1.23': 'value_name',
|
||||
'1.8.2.1.24': 'other_value',
|
||||
}
|
||||
|
||||
# Will print: "value_name"
|
||||
print(MyType('1.8.2.1.23').native)
|
||||
|
||||
# Will print: "1.8.2.1.23"
|
||||
print(MyType('1.8.2.1.23').dotted)
|
||||
|
||||
# Will print: "1.8.2.1.25"
|
||||
print(MyType('1.8.2.1.25').native)
|
||||
|
||||
# Will print "value_name"
|
||||
print(MyType.map('1.8.2.1.23'))
|
||||
|
||||
# Will print "1.8.2.1.23"
|
||||
print(MyType.unmap('value_name'))
|
||||
```
|
||||
|
||||
## BitString
|
||||
|
||||
When no `_map` is set for a `BitString` class, the native representation is a
|
||||
`tuple` of `int`s (being either `1` or `0`).
|
||||
|
||||
```python
|
||||
from asn1crypto.core import BitString
|
||||
|
||||
b1 = BitString((1, 0, 1))
|
||||
```
|
||||
|
||||
Additionally, it is possible to set the `_map` property to a dict where the
|
||||
keys are bit indexes and the values are unicode string names. This allows
|
||||
checking the value of a given bit by item access, and the native representation
|
||||
becomes a `set` of unicode strings.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import BitString
|
||||
|
||||
class MyFlags(BitString):
|
||||
_map = {
|
||||
0: 'edit',
|
||||
1: 'delete',
|
||||
2: 'manage_users',
|
||||
}
|
||||
|
||||
permissions = MyFlags({'edit', 'delete'})
|
||||
|
||||
# This will be printed
|
||||
if permissions['edit'] and permissions['delete']:
|
||||
print('Can edit and delete')
|
||||
|
||||
# This will not
|
||||
if 'manage_users' in permissions.native:
|
||||
print('Is admin')
|
||||
```
|
||||
|
||||
## Strings
|
||||
|
||||
ASN.1 contains quite a number of string types:
|
||||
|
||||
| Type | Standard Encoding | Implementation Encoding | Notes |
|
||||
| ----------------- | --------------------------------- | ----------------------- | ------------------------------------------------------------------------- |
|
||||
| `UTF8String` | UTF-8 | UTF-8 | |
|
||||
| `NumericString` | ASCII `[0-9 ]` | ISO 8859-1 | The implementation is a superset of supported characters |
|
||||
| `PrintableString` | ASCII `[a-zA-Z0-9 '()+,\\-./:=?]` | ISO 8859-1 | The implementation is a superset of supported characters |
|
||||
| `TeletexString` | ITU T.61 | Custom | The implementation is based off of https://en.wikipedia.org/wiki/ITU_T.61 |
|
||||
| `VideotexString` | *?* | *None* | This has no set encoding, and it not used in cryptography |
|
||||
| `IA5String` | ITU T.50 (very similar to ASCII) | ISO 8859-1 | The implementation is a superset of supported characters |
|
||||
| `GraphicString` | * | ISO 8859-1 | This has not set encoding, but seems to often contain ISO 8859-1 |
|
||||
| `VisibleString` | ASCII (printable) | ISO 8859-1 | The implementation is a superset of supported characters |
|
||||
| `GeneralString` | * | ISO 8859-1 | This has not set encoding, but seems to often contain ISO 8859-1 |
|
||||
| `UniversalString` | UTF-32 | UTF-32 | |
|
||||
| `CharacterString` | * | ISO 8859-1 | This has not set encoding, but seems to often contain ISO 8859-1 |
|
||||
| `BMPString` | UTF-16 | UTF-16 | |
|
||||
|
||||
As noted in the table above, many of the implementations are supersets of the
|
||||
supported characters. This simplifies parsing, but puts the onus of using valid
|
||||
characters on the developer. However, in general `UTF8String`, `BMPString` or
|
||||
`UniversalString` should be preferred when a choice is given.
|
||||
|
||||
All string types other than `VideotexString` are created from unicode strings.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import IA5String
|
||||
|
||||
print(IA5String('Testing!').native)
|
||||
```
|
||||
|
||||
## UTCTime
|
||||
|
||||
The class `UTCTime` accepts a unicode string in one of the formats:
|
||||
|
||||
- `%y%m%d%H%MZ`
|
||||
- `%y%m%d%H%M%SZ`
|
||||
- `%y%m%d%H%M%z`
|
||||
- `%y%m%d%H%M%S%z`
|
||||
|
||||
or a `datetime.datetime` instance. See the
|
||||
[Python datetime strptime() reference](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-behavior)
|
||||
for details of the formats.
|
||||
|
||||
When `.native` is accessed, it returns a `datetime.datetime` object with a
|
||||
`tzinfo` of `asn1crypto.util.timezone.utc`.
|
||||
|
||||
## GeneralizedTime
|
||||
|
||||
The class `GeneralizedTime` accepts a unicode string in one of the formats:
|
||||
|
||||
- `%Y%m%d%H`
|
||||
- `%Y%m%d%H%M`
|
||||
- `%Y%m%d%H%M%S`
|
||||
- `%Y%m%d%H%M%S.%f`
|
||||
- `%Y%m%d%HZ`
|
||||
- `%Y%m%d%H%MZ`
|
||||
- `%Y%m%d%H%M%SZ`
|
||||
- `%Y%m%d%H%M%S.%fZ`
|
||||
- `%Y%m%d%H%z`
|
||||
- `%Y%m%d%H%M%z`
|
||||
- `%Y%m%d%H%M%S%z`
|
||||
- `%Y%m%d%H%M%S.%f%z`
|
||||
|
||||
or a `datetime.datetime` instance. See the
|
||||
[Python datetime strptime() reference](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-behavior)
|
||||
for details of the formats.
|
||||
|
||||
When `.native` is accessed, it returns a `datetime.datetime` object with a
|
||||
`tzinfo` of `asn1crypto.util.timezone.utc`. For formats where the time has a
|
||||
timezone offset is specified (`[+-]\d{4}`), the time is converted to UTC. For
|
||||
times without a timezone, the time is assumed to be in UTC.
|
||||
|
||||
## Choice
|
||||
|
||||
The `Choice` class allows handling ASN.1 Choice structures. The `_alternatives`
|
||||
property must be set to a `list` containing 2-3 element `tuple`s. The first
|
||||
element in the tuple is the alternative name. The second element is the type
|
||||
class for the alternative. The, optional, third element is a `dict` of
|
||||
parameters to pass to the type class constructor. This is used primarily for
|
||||
implicit and explicit tagging.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Choice, Integer, OctetString, IA5String
|
||||
|
||||
class MyChoice(Choice):
|
||||
_alternatives = [
|
||||
('option_one', Integer),
|
||||
('option_two', OctetString),
|
||||
('option_three', IA5String),
|
||||
]
|
||||
```
|
||||
|
||||
`Choice` objects has two extra properties, `.name` and `.chosen`. The `.name`
|
||||
property contains the name of the chosen alternative. The `.chosen` property
|
||||
contains the instance of the chosen type class.
|
||||
|
||||
```python
|
||||
parsed = MyChoice.load(der_bytes)
|
||||
print(parsed.name)
|
||||
print(type(parsed.chosen))
|
||||
```
|
||||
|
||||
The `.native` property and `.dump()` method work as with the universal type
|
||||
classes. Under the hood they just proxy the calls to the `.chosen` object.
|
||||
|
||||
## Any
|
||||
|
||||
The `Any` class implements the ASN.1 Any type, which allows any data type. By
|
||||
default objects of this class do not perform any parsing. However, the
|
||||
`.parse()` instance method allows parsing the contents of the `Any` object,
|
||||
either into a universal type, or to a specification pass in via the `spec`
|
||||
parameter.
|
||||
|
||||
This type is not used as a top-level structure, but instead allows `Sequence`
|
||||
and `Set` objects to accept varying contents, usually based on some sort of
|
||||
`ObjectIdentifier`.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence, ObjectIdentifier, Any, Integer, OctetString
|
||||
|
||||
class MySequence(Sequence):
|
||||
_fields = [
|
||||
('type', ObjectIdentifier),
|
||||
('value', Any),
|
||||
]
|
||||
```
|
||||
|
||||
## Specification via OID
|
||||
|
||||
Throughout the usage of ASN.1 in cryptography, a pattern is present where an
|
||||
`ObjectIdenfitier` is used to determine what specification should be used to
|
||||
interpret another field in a `Sequence`. Usually the other field is an instance
|
||||
of `Any`, however occasionally it is an `OctetString` or `OctetBitString`.
|
||||
|
||||
*asn1crypto* provides the `_oid_pair` and `_oid_specs` properties of the
|
||||
`Sequence` class to allow handling these situations.
|
||||
|
||||
The `_oid_pair` is a tuple with two unicode string elements. The first is the
|
||||
name of the field that is an `ObjectIdentifier` and the second if the name of
|
||||
the field that has a variable specification based on the first field. *In
|
||||
situations where the value field should be an `OctetString` or `OctetBitString`,
|
||||
`ParsableOctetString` and `ParsableOctetBitString` will need to be used instead
|
||||
to allow for the sub-parsing of the contents.*
|
||||
|
||||
The `_oid_specs` property is a `dict` object with `ObjectIdentifier` values as
|
||||
the keys (either dotted or mapped notation) and a type class as the value. When
|
||||
the first field in `_oid_pair` has a value equal to one of the keys in
|
||||
`_oid_specs`, then the corresponding type class will be used as the
|
||||
specification for the second field of `_oid_pair`.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence, ObjectIdentifier, Any, OctetString, Integer
|
||||
|
||||
class MyId(ObjectIdentifier):
|
||||
_map = {
|
||||
'1.2.3.4': 'initialization_vector',
|
||||
'1.2.3.5': 'iterations',
|
||||
}
|
||||
|
||||
class MySequence(Sequence):
|
||||
_fields = [
|
||||
('type', MyId),
|
||||
('value', Any),
|
||||
]
|
||||
|
||||
_oid_pair = ('type', 'value')
|
||||
_oid_specs = {
|
||||
'initialization_vector': OctetString,
|
||||
'iterations': Integer,
|
||||
}
|
||||
```
|
||||
|
||||
## Explicit and Implicit Tagging
|
||||
|
||||
When working with `Sequence`, `Set` and `Choice` it is often necessary to
|
||||
disambiguate between fields because of a number of factors:
|
||||
|
||||
- In `Sequence` the presence of an optional field must be determined by tag number
|
||||
- In `Set`, each field must have a different tag number since they can be in any order
|
||||
- In `Choice`, each alternative must have a different tag number to determine which is present
|
||||
|
||||
The universal types all have unique tag numbers. However, if a `Sequence`, `Set`
|
||||
or `Choice` has more than one field with the same universal type, tagging allows
|
||||
a way to keep the semantics of the original type, but with a different tag
|
||||
number.
|
||||
|
||||
Implicit tagging simply changes the tag number of a type to a different value.
|
||||
However, Explicit tagging wraps the existing type in another tag with the
|
||||
specified tag number.
|
||||
|
||||
In general, most situations allow for implicit tagging, with the notable
|
||||
exception than a field that is a `Choice` type must always be explicitly tagged.
|
||||
Otherwise, using implicit tagging would modify the tag of the chosen
|
||||
alternative, breaking the mechanism by which `Choice` works.
|
||||
|
||||
Here is an example of implicit and explicit tagging where explicit tagging on
|
||||
the `Sequence` allows a `Choice` type field to be optional, and where implicit
|
||||
tagging in the `Choice` structure allows disambiguating between two string of
|
||||
the same type.
|
||||
|
||||
```python
|
||||
from asn1crypto.core import Sequence, Choice, IA5String, UTCTime, ObjectIdentifier
|
||||
|
||||
class Person(Choice):
|
||||
_alternatives = [
|
||||
('name', IA5String),
|
||||
('email', IA5String, {'implicit': 0}),
|
||||
]
|
||||
|
||||
class Record(Sequence):
|
||||
_fields = [
|
||||
('id', ObjectIdentifier),
|
||||
('created', UTCTime),
|
||||
('creator', Person, {'explicit': 0, 'optional': True}),
|
||||
]
|
||||
```
|
||||
|
||||
As is shown above, the keys `implicit` and `explicit` are used for tagging,
|
||||
and are passed to a type class constructor via the optional third element of
|
||||
a field or alternative tuple. Both parameters may be an integer tag number, or
|
||||
a 2-element tuple of string class name and integer tag.
|
||||
|
||||
If a tagging value needs its tagging changed, the `.untag()` method can be used
|
||||
to create a copy of the object without explicit/implicit tagging. The `.retag()`
|
||||
method can be used to change the tagging. This method accepts one parameter, a
|
||||
dict with either or both of the keys `implicit` and `explicit`.
|
||||
|
||||
```python
|
||||
person = Person(name='email', value='will@wbond.net')
|
||||
|
||||
# Will display True
|
||||
print(person.implicit)
|
||||
|
||||
# Will display False
|
||||
print(person.untag().implicit)
|
||||
|
||||
# Will display 0
|
||||
print(person.tag)
|
||||
|
||||
# Will display 1
|
||||
print(person.retag({'implicit': 1}).tag)
|
||||
```
|
||||
@ -9,6 +9,7 @@ A fast, pure Python library for parsing and serializing ASN.1 structures.
|
||||
- [Dependencies](#dependencies)
|
||||
- [Installation](#installation)
|
||||
- [License](#license)
|
||||
- [Security Policy](#security-policy)
|
||||
- [Documentation](#documentation)
|
||||
- [Continuous Integration](#continuous-integration)
|
||||
- [Testing](#testing)
|
||||
@ -109,11 +110,11 @@ faster to an order of magnitude or more.
|
||||
|
||||
## Current Release
|
||||
|
||||
1.4.0 - [changelog](changelog.md)
|
||||
1.5.0 - [changelog](changelog.md)
|
||||
|
||||
## Dependencies
|
||||
|
||||
Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9 or pypy. *No third-party
|
||||
Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 or pypy. *No third-party
|
||||
packages required.*
|
||||
|
||||
## Installation
|
||||
@ -127,6 +128,11 @@ pip install asn1crypto
|
||||
*asn1crypto* is licensed under the terms of the MIT license. See the
|
||||
[LICENSE](LICENSE) file for the exact license text.
|
||||
|
||||
## Security Policy
|
||||
|
||||
The security policies for this project are covered in
|
||||
[SECURITY.md](https://github.com/wbond/asn1crypto/blob/master/SECURITY.md).
|
||||
|
||||
## Documentation
|
||||
|
||||
The documentation for *asn1crypto* is composed of tutorials on basic usage and
|
||||
|
||||
@ -0,0 +1,4 @@
|
||||
[egg_info]
|
||||
tag_build =
|
||||
tag_date = 0
|
||||
|
||||
@ -10,7 +10,7 @@ from setuptools.command.egg_info import egg_info
|
||||
|
||||
|
||||
PACKAGE_NAME = 'asn1crypto'
|
||||
PACKAGE_VERSION = '1.4.0'
|
||||
PACKAGE_VERSION = '1.5.1'
|
||||
PACKAGE_ROOT = os.path.dirname(os.path.abspath(__file__))
|
||||
|
||||
|
||||
@ -138,6 +138,7 @@ setup(
|
||||
'Programming Language :: Python :: 3.7',
|
||||
'Programming Language :: Python :: 3.8',
|
||||
'Programming Language :: Python :: 3.9',
|
||||
'Programming Language :: Python :: 3.10',
|
||||
'Programming Language :: Python :: Implementation :: CPython',
|
||||
'Programming Language :: Python :: Implementation :: PyPy',
|
||||
|
||||
|
||||
Binary file not shown.
Binary file not shown.
@ -1 +1 @@
|
||||
2021-12-15-01
|
||||
2022-07-31-01
|
||||
@ -1,4 +1,4 @@
|
||||
Copyright (c) 2015-2019 Will Bond <will@wbond.net>
|
||||
Copyright (c) 2015-2022 Will Bond <will@wbond.net>
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: oscrypto
|
||||
Version: 1.2.1
|
||||
Version: 1.3.0
|
||||
Summary: TLS (SSL) sockets, key generation, encryption, decryption, signing, verification and KDFs using the OS crypto libraries. Does not require a compiler, and relies on the OS for patching. Works on Windows, OS X and Linux/BSD.
|
||||
Home-page: https://github.com/wbond/oscrypto
|
||||
Author: wbond
|
||||
@ -10,7 +10,7 @@ Description: # oscrypto
|
||||
|
||||
A compilation-free, always up-to-date encryption library for Python that works
|
||||
on Windows, OS X, Linux and BSD. Supports the following versions of Python:
|
||||
2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8 and pypy.
|
||||
2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 and pypy.
|
||||
|
||||
- [Supported Operating Systems](#supported-operationg-systems)
|
||||
- [Features](#features)
|
||||
@ -27,8 +27,6 @@ Description: # oscrypto
|
||||
- [CI Tasks](#ci-tasks)
|
||||
|
||||
[](https://github.com/wbond/oscrypto/actions?workflow=CI)
|
||||
[](https://travis-ci.org/wbond/oscrypto)
|
||||
[](https://ci.appveyor.com/project/wbond/oscrypto)
|
||||
[](https://circleci.com/gh/wbond/oscrypto)
|
||||
[](https://pypi.python.org/pypi/oscrypto)
|
||||
|
||||
@ -66,12 +64,15 @@ Description: # oscrypto
|
||||
- macOS 10.13 with LibreSSL 2.2.7
|
||||
- macOS 10.14
|
||||
- macOS 10.15
|
||||
- macOS 10.15 with OpenSSL 3.0
|
||||
- macOS 11
|
||||
- macOS 12
|
||||
- Linux or BSD
|
||||
- Uses one of:
|
||||
- [OpenSSL 0.9.8](https://www.openssl.org/docs/man0.9.8/)
|
||||
- [OpenSSL 1.0.x](https://www.openssl.org/docs/man1.0.0/)
|
||||
- [OpenSSL 1.1.0](https://www.openssl.org/docs/man1.1.0/)
|
||||
- [OpenSSL 3.0](https://www.openssl.org/docs/man3.0/)
|
||||
- [LibreSSL](http://www.libressl.org/)
|
||||
- Tested on:
|
||||
- Arch Linux with OpenSSL 1.0.2
|
||||
@ -81,6 +82,7 @@ Description: # oscrypto
|
||||
- Ubuntu 15.04 with OpenSSL 1.0.1
|
||||
- Ubuntu 16.04 with OpenSSL 1.0.2 on Raspberry Pi 3 (armhf)
|
||||
- Ubuntu 18.04 with OpenSSL 1.1.x (amd64, arm64, ppc64el)
|
||||
- Ubuntu 22.04 with OpenSSL 3.0 (amd64)
|
||||
|
||||
*OS X 10.6 will not be supported due to a lack of available
|
||||
cryptographic primitives and due to lack of vendor support.*
|
||||
@ -207,7 +209,10 @@ Description: # oscrypto
|
||||
## Dependencies
|
||||
|
||||
- [*asn1crypto*](https://github.com/wbond/asn1crypto)
|
||||
- Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8 or pypy
|
||||
- Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 or pypy
|
||||
- OpenSSL/LibreSSL if on Linux¹
|
||||
|
||||
*¹ On Linux, `ctypes.util.find_library()` is used to located OpenSSL. Alpine Linux does not have an appropriate install by default for `find_library()` to work properly. Instead, `oscrypto.use_openssl()` must be called with the path to the OpenSSL shared libraries.*
|
||||
|
||||
## Installation
|
||||
|
||||
@ -228,10 +233,8 @@ Description: # oscrypto
|
||||
|
||||
Various combinations of platforms and versions of Python are tested via:
|
||||
|
||||
- [AppVeyor](https://ci.appveyor.com/project/wbond/oscrypto/history)
|
||||
- [CircleCI](https://circleci.com/gh/wbond/oscrypto)
|
||||
- [GitHub Actions](https://github.com/wbond/oscrypto/actions)
|
||||
- [Travis CI](https://travis-ci.org/wbond/oscrypto/builds)
|
||||
- [macOS, Linux, Windows](https://github.com/wbond/oscrypto/actions/workflows/ci.yml) via GitHub Actions
|
||||
- [arm64](https://circleci.com/gh/wbond/oscrypto) via CircleCI
|
||||
|
||||
## Testing
|
||||
|
||||
@ -264,11 +267,36 @@ Description: # oscrypto
|
||||
python run.py tests aes 20
|
||||
```
|
||||
|
||||
#### Backend Options
|
||||
|
||||
To run tests using a custom build of OpenSSL, or to use OpenSSL on Windows or
|
||||
Mac, add `use_openssl` after `run.py`, like:
|
||||
|
||||
```bash
|
||||
python run.py use_openssl=/path/to/libcrypto.dylib,/path/to/libssl.dylib tests
|
||||
python run.py use_openssl=/path/to/libcrypto.so,/path/to/libssl.so tests
|
||||
```
|
||||
|
||||
To run tests forcing the use of ctypes, even if cffi is installed, add
|
||||
`use_ctypes` after `run.py`:
|
||||
|
||||
```bash
|
||||
python run.py use_ctypes=true tests
|
||||
```
|
||||
|
||||
To run tests using the legacy Windows crypto functions on Windows 7+, add
|
||||
`use_winlegacy` after `run.py`:
|
||||
|
||||
```bash
|
||||
python run.py use_winlegacy=true tests
|
||||
```
|
||||
|
||||
#### Internet Tests
|
||||
|
||||
To skip tests that require an internet connection, add `skip_internet` after
|
||||
`run.py`:
|
||||
|
||||
```bash
|
||||
python run.py skip_internet=true tests
|
||||
```
|
||||
|
||||
### PyPi Source Distribution
|
||||
@ -280,6 +308,45 @@ Description: # oscrypto
|
||||
python setup.py test
|
||||
```
|
||||
|
||||
#### Test Options
|
||||
|
||||
The following env vars can control aspects of running tests:
|
||||
|
||||
##### Force OpenSSL Shared Library Paths
|
||||
|
||||
Setting the env var `OSCRYPTO_USE_OPENSSL` to a string in the form:
|
||||
|
||||
```
|
||||
/path/to/libcrypto.so,/path/to/libssl.so
|
||||
```
|
||||
|
||||
will force use of specific OpenSSL shared libraries.
|
||||
|
||||
This also works on Mac and Windows to force use of OpenSSL instead of using
|
||||
native crypto libraries.
|
||||
|
||||
##### Force Use of ctypes
|
||||
|
||||
By default, oscrypto will use the `cffi` module for FFI if it is installed.
|
||||
|
||||
To use the slightly slower, but more widely-tested, `ctypes` FFI layer, set
|
||||
the env var `OPENSSL_USE_CTYPES=true`.
|
||||
|
||||
##### Force Use of Legacy Windows Crypto APIs
|
||||
|
||||
On Windows 7 and newer, oscrypto will use the CNG backend by default.
|
||||
|
||||
To force use of the older CryptoAPI, set the env var
|
||||
`OPENSSL_USE_WINLEGACY=true`.
|
||||
|
||||
##### Skip Tests Requiring an Internet Connection
|
||||
|
||||
Some of the TLS tests require an active internet connection to ensure that
|
||||
various "bad" server certificates are rejected.
|
||||
|
||||
To skip tests requiring an internet connection, set the env var
|
||||
`OPENSSL_SKIP_INTERNET_TESTS=true`.
|
||||
|
||||
### Package
|
||||
|
||||
When the package has been installed via pip (or another method), the package
|
||||
@ -353,7 +420,7 @@ Description: # oscrypto
|
||||
related to getting pip to work properly and messing with `site-packages` for
|
||||
the version of Python being used.
|
||||
|
||||
The `ci` task runs `lint` (if flake8 is avaiable for the version of Python) and
|
||||
The `ci` task runs `lint` (if flake8 is available for the version of Python) and
|
||||
`coverage` (or `tests` if coverage is not available for the version of Python).
|
||||
If the current directory is a clean git working copy, the coverage data is
|
||||
submitted to codecov.io.
|
||||
@ -368,8 +435,10 @@ Platform: UNKNOWN
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: MIT License
|
||||
Classifier: Programming Language :: Python :: 2
|
||||
Classifier: Programming Language :: Python :: 2.6
|
||||
Classifier: Programming Language :: Python :: 2.7
|
||||
Classifier: Programming Language :: Python :: 3
|
||||
Classifier: Programming Language :: Python :: 3.2
|
||||
Classifier: Programming Language :: Python :: 3.3
|
||||
Classifier: Programming Language :: Python :: 3.4
|
||||
@ -377,6 +446,8 @@ Classifier: Programming Language :: Python :: 3.5
|
||||
Classifier: Programming Language :: Python :: 3.6
|
||||
Classifier: Programming Language :: Python :: 3.7
|
||||
Classifier: Programming Language :: Python :: 3.8
|
||||
Classifier: Programming Language :: Python :: 3.9
|
||||
Classifier: Programming Language :: Python :: 3.10
|
||||
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
||||
Classifier: Topic :: Security :: Cryptography
|
||||
Description-Content-Type: text/markdown
|
||||
|
||||
@ -1,5 +1,22 @@
|
||||
# changelog
|
||||
|
||||
## 1.3.0
|
||||
|
||||
- Add support for OpenSSL 3.0
|
||||
- Add first-class support for RSASSA-PSS certificates
|
||||
- Add user-friendly handling of the error message with TLS on macOS
|
||||
when a ceritificate has a lifetime that is longer than the CAB forum
|
||||
guidelines
|
||||
- Fix AES 192/256 encryption on OpenSSL and Windows to allow no padding when
|
||||
plaintext is an exact multiple of 16 bytes long. Previously AES192 would
|
||||
require plaintext with a length that was a multiple of 24 AND 16, and
|
||||
AES256 would require plaintext with a length that was a multiple of 32.
|
||||
- Add the ability to skip tests that require internet connectivity
|
||||
*via @jnahmias*
|
||||
- Fix a bug throwing an exception when passing an invalid type to
|
||||
`asymmetric.load_public_key()` *via @Arbitrage0*
|
||||
- Fix a number of typos in doc strings *via @frennkie and @kianmeng*
|
||||
|
||||
## 1.2.1
|
||||
|
||||
- Fix running in an environment with a custom OpenSSL install on macOS 10.15
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
Copyright (c) 2015-2019 Will Bond <will@wbond.net>
|
||||
Copyright (c) 2015-2022 Will Bond <will@wbond.net>
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
Metadata-Version: 2.1
|
||||
Name: oscrypto
|
||||
Version: 1.2.1
|
||||
Version: 1.3.0
|
||||
Summary: TLS (SSL) sockets, key generation, encryption, decryption, signing, verification and KDFs using the OS crypto libraries. Does not require a compiler, and relies on the OS for patching. Works on Windows, OS X and Linux/BSD.
|
||||
Home-page: https://github.com/wbond/oscrypto
|
||||
Author: wbond
|
||||
@ -10,7 +10,7 @@ Description: # oscrypto
|
||||
|
||||
A compilation-free, always up-to-date encryption library for Python that works
|
||||
on Windows, OS X, Linux and BSD. Supports the following versions of Python:
|
||||
2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8 and pypy.
|
||||
2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 and pypy.
|
||||
|
||||
- [Supported Operating Systems](#supported-operationg-systems)
|
||||
- [Features](#features)
|
||||
@ -27,8 +27,6 @@ Description: # oscrypto
|
||||
- [CI Tasks](#ci-tasks)
|
||||
|
||||
[](https://github.com/wbond/oscrypto/actions?workflow=CI)
|
||||
[](https://travis-ci.org/wbond/oscrypto)
|
||||
[](https://ci.appveyor.com/project/wbond/oscrypto)
|
||||
[](https://circleci.com/gh/wbond/oscrypto)
|
||||
[](https://pypi.python.org/pypi/oscrypto)
|
||||
|
||||
@ -66,12 +64,15 @@ Description: # oscrypto
|
||||
- macOS 10.13 with LibreSSL 2.2.7
|
||||
- macOS 10.14
|
||||
- macOS 10.15
|
||||
- macOS 10.15 with OpenSSL 3.0
|
||||
- macOS 11
|
||||
- macOS 12
|
||||
- Linux or BSD
|
||||
- Uses one of:
|
||||
- [OpenSSL 0.9.8](https://www.openssl.org/docs/man0.9.8/)
|
||||
- [OpenSSL 1.0.x](https://www.openssl.org/docs/man1.0.0/)
|
||||
- [OpenSSL 1.1.0](https://www.openssl.org/docs/man1.1.0/)
|
||||
- [OpenSSL 3.0](https://www.openssl.org/docs/man3.0/)
|
||||
- [LibreSSL](http://www.libressl.org/)
|
||||
- Tested on:
|
||||
- Arch Linux with OpenSSL 1.0.2
|
||||
@ -81,6 +82,7 @@ Description: # oscrypto
|
||||
- Ubuntu 15.04 with OpenSSL 1.0.1
|
||||
- Ubuntu 16.04 with OpenSSL 1.0.2 on Raspberry Pi 3 (armhf)
|
||||
- Ubuntu 18.04 with OpenSSL 1.1.x (amd64, arm64, ppc64el)
|
||||
- Ubuntu 22.04 with OpenSSL 3.0 (amd64)
|
||||
|
||||
*OS X 10.6 will not be supported due to a lack of available
|
||||
cryptographic primitives and due to lack of vendor support.*
|
||||
@ -207,7 +209,10 @@ Description: # oscrypto
|
||||
## Dependencies
|
||||
|
||||
- [*asn1crypto*](https://github.com/wbond/asn1crypto)
|
||||
- Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8 or pypy
|
||||
- Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 or pypy
|
||||
- OpenSSL/LibreSSL if on Linux¹
|
||||
|
||||
*¹ On Linux, `ctypes.util.find_library()` is used to located OpenSSL. Alpine Linux does not have an appropriate install by default for `find_library()` to work properly. Instead, `oscrypto.use_openssl()` must be called with the path to the OpenSSL shared libraries.*
|
||||
|
||||
## Installation
|
||||
|
||||
@ -228,10 +233,8 @@ Description: # oscrypto
|
||||
|
||||
Various combinations of platforms and versions of Python are tested via:
|
||||
|
||||
- [AppVeyor](https://ci.appveyor.com/project/wbond/oscrypto/history)
|
||||
- [CircleCI](https://circleci.com/gh/wbond/oscrypto)
|
||||
- [GitHub Actions](https://github.com/wbond/oscrypto/actions)
|
||||
- [Travis CI](https://travis-ci.org/wbond/oscrypto/builds)
|
||||
- [macOS, Linux, Windows](https://github.com/wbond/oscrypto/actions/workflows/ci.yml) via GitHub Actions
|
||||
- [arm64](https://circleci.com/gh/wbond/oscrypto) via CircleCI
|
||||
|
||||
## Testing
|
||||
|
||||
@ -264,11 +267,36 @@ Description: # oscrypto
|
||||
python run.py tests aes 20
|
||||
```
|
||||
|
||||
#### Backend Options
|
||||
|
||||
To run tests using a custom build of OpenSSL, or to use OpenSSL on Windows or
|
||||
Mac, add `use_openssl` after `run.py`, like:
|
||||
|
||||
```bash
|
||||
python run.py use_openssl=/path/to/libcrypto.dylib,/path/to/libssl.dylib tests
|
||||
python run.py use_openssl=/path/to/libcrypto.so,/path/to/libssl.so tests
|
||||
```
|
||||
|
||||
To run tests forcing the use of ctypes, even if cffi is installed, add
|
||||
`use_ctypes` after `run.py`:
|
||||
|
||||
```bash
|
||||
python run.py use_ctypes=true tests
|
||||
```
|
||||
|
||||
To run tests using the legacy Windows crypto functions on Windows 7+, add
|
||||
`use_winlegacy` after `run.py`:
|
||||
|
||||
```bash
|
||||
python run.py use_winlegacy=true tests
|
||||
```
|
||||
|
||||
#### Internet Tests
|
||||
|
||||
To skip tests that require an internet connection, add `skip_internet` after
|
||||
`run.py`:
|
||||
|
||||
```bash
|
||||
python run.py skip_internet=true tests
|
||||
```
|
||||
|
||||
### PyPi Source Distribution
|
||||
@ -280,6 +308,45 @@ Description: # oscrypto
|
||||
python setup.py test
|
||||
```
|
||||
|
||||
#### Test Options
|
||||
|
||||
The following env vars can control aspects of running tests:
|
||||
|
||||
##### Force OpenSSL Shared Library Paths
|
||||
|
||||
Setting the env var `OSCRYPTO_USE_OPENSSL` to a string in the form:
|
||||
|
||||
```
|
||||
/path/to/libcrypto.so,/path/to/libssl.so
|
||||
```
|
||||
|
||||
will force use of specific OpenSSL shared libraries.
|
||||
|
||||
This also works on Mac and Windows to force use of OpenSSL instead of using
|
||||
native crypto libraries.
|
||||
|
||||
##### Force Use of ctypes
|
||||
|
||||
By default, oscrypto will use the `cffi` module for FFI if it is installed.
|
||||
|
||||
To use the slightly slower, but more widely-tested, `ctypes` FFI layer, set
|
||||
the env var `OPENSSL_USE_CTYPES=true`.
|
||||
|
||||
##### Force Use of Legacy Windows Crypto APIs
|
||||
|
||||
On Windows 7 and newer, oscrypto will use the CNG backend by default.
|
||||
|
||||
To force use of the older CryptoAPI, set the env var
|
||||
`OPENSSL_USE_WINLEGACY=true`.
|
||||
|
||||
##### Skip Tests Requiring an Internet Connection
|
||||
|
||||
Some of the TLS tests require an active internet connection to ensure that
|
||||
various "bad" server certificates are rejected.
|
||||
|
||||
To skip tests requiring an internet connection, set the env var
|
||||
`OPENSSL_SKIP_INTERNET_TESTS=true`.
|
||||
|
||||
### Package
|
||||
|
||||
When the package has been installed via pip (or another method), the package
|
||||
@ -353,7 +420,7 @@ Description: # oscrypto
|
||||
related to getting pip to work properly and messing with `site-packages` for
|
||||
the version of Python being used.
|
||||
|
||||
The `ci` task runs `lint` (if flake8 is avaiable for the version of Python) and
|
||||
The `ci` task runs `lint` (if flake8 is available for the version of Python) and
|
||||
`coverage` (or `tests` if coverage is not available for the version of Python).
|
||||
If the current directory is a clean git working copy, the coverage data is
|
||||
submitted to codecov.io.
|
||||
@ -368,8 +435,10 @@ Platform: UNKNOWN
|
||||
Classifier: Development Status :: 5 - Production/Stable
|
||||
Classifier: Intended Audience :: Developers
|
||||
Classifier: License :: OSI Approved :: MIT License
|
||||
Classifier: Programming Language :: Python :: 2
|
||||
Classifier: Programming Language :: Python :: 2.6
|
||||
Classifier: Programming Language :: Python :: 2.7
|
||||
Classifier: Programming Language :: Python :: 3
|
||||
Classifier: Programming Language :: Python :: 3.2
|
||||
Classifier: Programming Language :: Python :: 3.3
|
||||
Classifier: Programming Language :: Python :: 3.4
|
||||
@ -377,6 +446,8 @@ Classifier: Programming Language :: Python :: 3.5
|
||||
Classifier: Programming Language :: Python :: 3.6
|
||||
Classifier: Programming Language :: Python :: 3.7
|
||||
Classifier: Programming Language :: Python :: 3.8
|
||||
Classifier: Programming Language :: Python :: 3.9
|
||||
Classifier: Programming Language :: Python :: 3.10
|
||||
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
||||
Classifier: Topic :: Security :: Cryptography
|
||||
Description-Content-Type: text/markdown
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
LICENSE
|
||||
setup.py
|
||||
oscrypto/__init__.py
|
||||
oscrypto/_asn1.py
|
||||
|
||||
@ -1 +1 @@
|
||||
asn1crypto>=1.0.0
|
||||
asn1crypto>=1.5.1
|
||||
|
||||
Binary file not shown.
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@ -241,10 +241,12 @@ def _unwrap_private_key_info(key_info):
|
||||
- asn1crypto.keys.ECPrivateKey
|
||||
"""
|
||||
|
||||
if key_info.algorithm == 'rsa':
|
||||
key_alg = key_info.algorithm
|
||||
|
||||
if key_alg == 'rsa' or key_alg == 'rsassa_pss':
|
||||
return key_info['private_key'].parsed
|
||||
|
||||
if key_info.algorithm == 'dsa':
|
||||
if key_alg == 'dsa':
|
||||
params = key_info['private_key_algorithm']['parameters']
|
||||
parsed = key_info['private_key'].parsed
|
||||
return DSAPrivateKey({
|
||||
@ -260,7 +262,7 @@ def _unwrap_private_key_info(key_info):
|
||||
'private_key': parsed,
|
||||
})
|
||||
|
||||
if key_info.algorithm == 'ec':
|
||||
if key_alg == 'ec':
|
||||
parsed = key_info['private_key'].parsed
|
||||
parsed['parameters'] = key_info['private_key_algorithm']['parameters']
|
||||
return parsed
|
||||
@ -660,7 +662,7 @@ def _unarmor_pem(data, password=None):
|
||||
data = data.strip()
|
||||
|
||||
# RSA private keys are encrypted after being DER-encoded, but before base64
|
||||
# encoding, so they need to be hanlded specially
|
||||
# encoding, so they need to be handled specially
|
||||
if pem_header in set(['RSA PRIVATE KEY', 'DSA PRIVATE KEY', 'EC PRIVATE KEY']):
|
||||
algo = armor_type.group(2).lower()
|
||||
return ('private key', algo, _unarmor_pem_openssl_private(headers, der_bytes, password))
|
||||
|
||||
@ -119,6 +119,7 @@ class SecurityConst():
|
||||
CSSMERR_TP_CERT_NOT_VALID_YET = -2147409653
|
||||
CSSMERR_TP_CERT_REVOKED = -2147409652
|
||||
CSSMERR_TP_NOT_TRUSTED = -2147409622
|
||||
CSSMERR_TP_CERT_SUSPENDED = -2147409651
|
||||
|
||||
CSSM_CERT_X_509v3 = 0x00000004
|
||||
|
||||
|
||||
@ -250,8 +250,18 @@ class Certificate(_CertificateBase):
|
||||
"""
|
||||
|
||||
if not self._public_key and self.sec_certificate_ref:
|
||||
if self.asn1.signature_algo == "rsassa_pss":
|
||||
# macOS doesn't like importing RSA PSS certs, so we treat it like a
|
||||
# traditional RSA cert
|
||||
asn1 = self.asn1.copy()
|
||||
asn1['tbs_certificate']['subject_public_key_info']['algorithm']['algorithm'] = 'rsa'
|
||||
temp_cert = _load_x509(asn1)
|
||||
sec_cert_ref = temp_cert.sec_certificate_ref
|
||||
else:
|
||||
sec_cert_ref = self.sec_certificate_ref
|
||||
|
||||
sec_public_key_ref_pointer = new(Security, 'SecKeyRef *')
|
||||
res = Security.SecCertificateCopyPublicKey(self.sec_certificate_ref, sec_public_key_ref_pointer)
|
||||
res = Security.SecCertificateCopyPublicKey(sec_cert_ref, sec_public_key_ref_pointer)
|
||||
handle_sec_error(res)
|
||||
sec_public_key_ref = unwrap(sec_public_key_ref_pointer)
|
||||
self._public_key = PublicKey(sec_public_key_ref, self.asn1['tbs_certificate']['subject_public_key_info'])
|
||||
@ -274,6 +284,8 @@ class Certificate(_CertificateBase):
|
||||
|
||||
if signature_algo == 'rsassa_pkcs1v15':
|
||||
verify_func = rsa_pkcs1v15_verify
|
||||
elif signature_algo == 'rsassa_pss':
|
||||
verify_func = rsa_pss_verify
|
||||
elif signature_algo == 'dsa':
|
||||
verify_func = dsa_verify
|
||||
elif signature_algo == 'ecdsa':
|
||||
@ -832,6 +844,13 @@ def _load_key(key_object):
|
||||
))
|
||||
|
||||
if isinstance(key_object, PublicKeyInfo):
|
||||
if key_object.algorithm == 'rsassa_pss':
|
||||
# We have to masquerade an RSA PSS key as plain RSA or it won't
|
||||
# import properly
|
||||
temp_key_object = key_object.copy()
|
||||
temp_key_object['algorithm']['algorithm'] = 'rsa'
|
||||
source = temp_key_object.dump()
|
||||
else:
|
||||
source = key_object.dump()
|
||||
item_type = SecurityConst.kSecItemTypePublicKey
|
||||
|
||||
@ -1392,7 +1411,8 @@ def rsa_pss_verify(certificate_or_public_key, signature, data, hash_algorithm):
|
||||
type_name(data)
|
||||
))
|
||||
|
||||
if certificate_or_public_key.algorithm != 'rsa':
|
||||
cp_algo = certificate_or_public_key.algorithm
|
||||
if cp_algo != 'rsa' and cp_algo != 'rsassa_pss':
|
||||
raise ValueError('The key specified is not an RSA public key')
|
||||
|
||||
hash_length = {
|
||||
@ -1735,7 +1755,8 @@ def rsa_pss_sign(private_key, data, hash_algorithm):
|
||||
type_name(data)
|
||||
))
|
||||
|
||||
if private_key.algorithm != 'rsa':
|
||||
pk_algo = private_key.algorithm
|
||||
if pk_algo != 'rsa' and pk_algo != 'rsassa_pss':
|
||||
raise ValueError('The key specified is not an RSA private key')
|
||||
|
||||
hash_length = {
|
||||
|
||||
@ -50,6 +50,7 @@ from .._tls import (
|
||||
raise_expired_not_yet_valid,
|
||||
raise_handshake,
|
||||
raise_hostname,
|
||||
raise_lifetime_too_long,
|
||||
raise_no_issuer,
|
||||
raise_protocol_error,
|
||||
raise_protocol_version,
|
||||
@ -103,7 +104,7 @@ def _read_callback(connection_id, data_buffer, data_length_pointer):
|
||||
Callback called by Secure Transport to actually read the socket
|
||||
|
||||
:param connection_id:
|
||||
An integer identifing the connection
|
||||
An integer identifying the connection
|
||||
|
||||
:param data_buffer:
|
||||
A char pointer FFI type to write the data to
|
||||
@ -218,7 +219,7 @@ def _write_callback(connection_id, data_buffer, data_length_pointer):
|
||||
Callback called by Secure Transport to actually write to the socket
|
||||
|
||||
:param connection_id:
|
||||
An integer identifing the connection
|
||||
An integer identifying the connection
|
||||
|
||||
:param data_buffer:
|
||||
A char pointer FFI type containing the data to write
|
||||
@ -463,7 +464,7 @@ class TLSSocket(object):
|
||||
def __init__(self, address, port, timeout=10, session=None):
|
||||
"""
|
||||
:param address:
|
||||
A unicode string of the domain name or IP address to conenct to
|
||||
A unicode string of the domain name or IP address to connect to
|
||||
|
||||
:param port:
|
||||
An integer of the port number to connect to
|
||||
@ -875,6 +876,7 @@ class TLSSocket(object):
|
||||
expired = result_code == SecurityConst.CSSMERR_TP_CERT_EXPIRED
|
||||
not_yet_valid = result_code == SecurityConst.CSSMERR_TP_CERT_NOT_VALID_YET
|
||||
bad_hostname = result_code == SecurityConst.CSSMERR_APPLETP_HOSTNAME_MISMATCH
|
||||
validity_too_long = result_code == SecurityConst.CSSMERR_TP_CERT_SUSPENDED
|
||||
|
||||
# On macOS 10.12, some expired certificates return errSSLInternal
|
||||
if osx_version_info >= (10, 12):
|
||||
@ -903,6 +905,9 @@ class TLSSocket(object):
|
||||
elif self_signed:
|
||||
raise_self_signed(cert)
|
||||
|
||||
elif validity_too_long:
|
||||
raise_lifetime_too_long(cert)
|
||||
|
||||
if detect_client_auth_request(self._server_hello):
|
||||
raise_client_auth()
|
||||
|
||||
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -5,6 +5,15 @@ from .. import ffi
|
||||
from .._ffi import buffer_from_bytes, byte_string_from_buffer, null
|
||||
from .._types import str_cls
|
||||
|
||||
|
||||
|
||||
|
||||
# This file has been modified to work on OpenSSL 3.
|
||||
# For more information see the readme.md in the root of the archive,
|
||||
# or check out this PR: https://github.com/wbond/oscrypto/pull/61
|
||||
|
||||
|
||||
|
||||
if ffi() == 'cffi':
|
||||
from ._libcrypto_cffi import (
|
||||
libcrypto,
|
||||
@ -22,6 +31,7 @@ else:
|
||||
__all__ = [
|
||||
'handle_openssl_error',
|
||||
'libcrypto',
|
||||
'libcrypto_legacy_support',
|
||||
'libcrypto_version',
|
||||
'libcrypto_version_info',
|
||||
'LibcryptoConst',
|
||||
@ -38,6 +48,18 @@ if libcrypto_version_info < (1, 1):
|
||||
libcrypto.OPENSSL_config(null())
|
||||
|
||||
|
||||
# This enables legacy algorithms in OpenSSL 3.0, such as RC2, etc
|
||||
# which are used by various tests and some old protocols and things
|
||||
# like PKCS12
|
||||
libcrypto_legacy_support = True
|
||||
if libcrypto_version_info >= (3, ):
|
||||
libcrypto.OSSL_PROVIDER_load(null(), "legacy".encode("ascii"))
|
||||
libcrypto.OSSL_PROVIDER_load(null(), "default".encode("ascii"))
|
||||
|
||||
if libcrypto.OSSL_PROVIDER_available(null(), "legacy".encode("ascii")) == 0:
|
||||
libcrypto_legacy_support = False
|
||||
|
||||
|
||||
def _try_decode(value):
|
||||
|
||||
try:
|
||||
@ -57,7 +79,7 @@ def _try_decode(value):
|
||||
|
||||
def handle_openssl_error(result, exception_class=None):
|
||||
"""
|
||||
Checks if an error occured, and if so throws an OSError containing the
|
||||
Checks if an error occurred, and if so throws an OSError containing the
|
||||
last OpenSSL error message
|
||||
|
||||
:param result:
|
||||
@ -95,9 +117,15 @@ def peek_openssl_error():
|
||||
"""
|
||||
|
||||
error = libcrypto.ERR_peek_error()
|
||||
if libcrypto_version_info < (3, 0):
|
||||
lib = int((error >> 24) & 0xff)
|
||||
func = int((error >> 12) & 0xfff)
|
||||
reason = int(error & 0xfff)
|
||||
else:
|
||||
lib = int((error >> 23) & 0xff)
|
||||
# OpenSSL 3.0 removed ERR_GET_FUNC()
|
||||
func = 0
|
||||
reason = int(error & 0x7fffff)
|
||||
|
||||
return (lib, func, reason)
|
||||
|
||||
|
||||
@ -0,0 +1,149 @@
|
||||
# coding: utf-8
|
||||
from __future__ import unicode_literals, division, absolute_import, print_function
|
||||
|
||||
from .. import ffi
|
||||
from .._ffi import buffer_from_bytes, byte_string_from_buffer, null
|
||||
from .._types import str_cls
|
||||
|
||||
if ffi() == 'cffi':
|
||||
from ._libcrypto_cffi import (
|
||||
libcrypto,
|
||||
version as libcrypto_version,
|
||||
version_info as libcrypto_version_info
|
||||
)
|
||||
else:
|
||||
from ._libcrypto_ctypes import (
|
||||
libcrypto,
|
||||
version as libcrypto_version,
|
||||
version_info as libcrypto_version_info
|
||||
)
|
||||
|
||||
|
||||
__all__ = [
|
||||
'handle_openssl_error',
|
||||
'libcrypto',
|
||||
'libcrypto_legacy_support',
|
||||
'libcrypto_version',
|
||||
'libcrypto_version_info',
|
||||
'LibcryptoConst',
|
||||
'peek_openssl_error',
|
||||
]
|
||||
|
||||
|
||||
_encoding = 'utf-8'
|
||||
_fallback_encodings = ['utf-8', 'cp1252']
|
||||
|
||||
|
||||
if libcrypto_version_info < (1, 1):
|
||||
libcrypto.ERR_load_crypto_strings()
|
||||
libcrypto.OPENSSL_config(null())
|
||||
|
||||
|
||||
# This enables legacy algorithms in OpenSSL 3.0, such as RC2, etc
|
||||
# which are used by various tests and some old protocols and things
|
||||
# like PKCS12
|
||||
libcrypto_legacy_support = True
|
||||
if libcrypto_version_info >= (3, ):
|
||||
if libcrypto.OSSL_PROVIDER_available(null(), "legacy".encode("ascii")):
|
||||
libcrypto.OSSL_PROVIDER_load(null(), "legacy".encode("ascii"))
|
||||
else:
|
||||
libcrypto_legacy_support = False
|
||||
|
||||
|
||||
def _try_decode(value):
|
||||
|
||||
try:
|
||||
return str_cls(value, _encoding)
|
||||
|
||||
# If the "correct" encoding did not work, try some defaults, and then just
|
||||
# obliterate characters that we can't seen to decode properly
|
||||
except (UnicodeDecodeError):
|
||||
for encoding in _fallback_encodings:
|
||||
try:
|
||||
return str_cls(value, encoding, errors='strict')
|
||||
except (UnicodeDecodeError):
|
||||
pass
|
||||
|
||||
return str_cls(value, errors='replace')
|
||||
|
||||
|
||||
def handle_openssl_error(result, exception_class=None):
|
||||
"""
|
||||
Checks if an error occurred, and if so throws an OSError containing the
|
||||
last OpenSSL error message
|
||||
|
||||
:param result:
|
||||
An integer result code - 1 or greater indicates success
|
||||
|
||||
:param exception_class:
|
||||
The exception class to use for the exception if an error occurred
|
||||
|
||||
:raises:
|
||||
OSError - when an OpenSSL error occurs
|
||||
"""
|
||||
|
||||
if result > 0:
|
||||
return
|
||||
|
||||
if exception_class is None:
|
||||
exception_class = OSError
|
||||
|
||||
error_num = libcrypto.ERR_get_error()
|
||||
buffer = buffer_from_bytes(120)
|
||||
libcrypto.ERR_error_string(error_num, buffer)
|
||||
|
||||
# Since we are dealing with a string, it is NULL terminated
|
||||
error_string = byte_string_from_buffer(buffer)
|
||||
|
||||
raise exception_class(_try_decode(error_string))
|
||||
|
||||
|
||||
def peek_openssl_error():
|
||||
"""
|
||||
Peeks into the error stack and pulls out the lib, func and reason
|
||||
|
||||
:return:
|
||||
A three-element tuple of integers (lib, func, reason)
|
||||
"""
|
||||
|
||||
error = libcrypto.ERR_peek_error()
|
||||
if libcrypto_version_info < (3, 0):
|
||||
lib = int((error >> 24) & 0xff)
|
||||
func = int((error >> 12) & 0xfff)
|
||||
reason = int(error & 0xfff)
|
||||
else:
|
||||
lib = int((error >> 23) & 0xff)
|
||||
# OpenSSL 3.0 removed ERR_GET_FUNC()
|
||||
func = 0
|
||||
reason = int(error & 0x7fffff)
|
||||
|
||||
return (lib, func, reason)
|
||||
|
||||
|
||||
class LibcryptoConst():
|
||||
EVP_CTRL_SET_RC2_KEY_BITS = 3
|
||||
|
||||
SSLEAY_VERSION = 0
|
||||
|
||||
RSA_PKCS1_PADDING = 1
|
||||
RSA_NO_PADDING = 3
|
||||
RSA_PKCS1_OAEP_PADDING = 4
|
||||
|
||||
# OpenSSL 0.9.x
|
||||
EVP_MD_CTX_FLAG_PSS_MDLEN = -1
|
||||
|
||||
# OpenSSL 1.x.x
|
||||
EVP_PKEY_CTRL_RSA_PADDING = 0x1001
|
||||
RSA_PKCS1_PSS_PADDING = 6
|
||||
EVP_PKEY_CTRL_RSA_PSS_SALTLEN = 0x1002
|
||||
EVP_PKEY_RSA = 6
|
||||
EVP_PKEY_OP_SIGN = 1 << 3
|
||||
EVP_PKEY_OP_VERIFY = 1 << 4
|
||||
|
||||
NID_X9_62_prime256v1 = 415
|
||||
NID_secp384r1 = 715
|
||||
NID_secp521r1 = 716
|
||||
|
||||
OPENSSL_EC_NAMED_CURVE = 1
|
||||
|
||||
DH_GENERATOR_2 = 2
|
||||
@ -74,6 +74,16 @@ if version_info < (1, 1):
|
||||
void ERR_free_strings(void);
|
||||
""")
|
||||
|
||||
|
||||
if version_info >= (3, ):
|
||||
ffi.cdef("""
|
||||
typedef ... OSSL_LIB_CTX;
|
||||
typedef ... OSSL_PROVIDER;
|
||||
|
||||
int OSSL_PROVIDER_available(OSSL_LIB_CTX *libctx, const char *name);
|
||||
OSSL_PROVIDER *OSSL_PROVIDER_load(OSSL_LIB_CTX *libctx, const char *name);
|
||||
""")
|
||||
|
||||
# The typedef uintptr_t lines here allow us to check for a NULL pointer,
|
||||
# without having to redefine the structs in our code. This is kind of a hack,
|
||||
# but it should cause problems since we treat these as opaque.
|
||||
@ -140,7 +150,6 @@ ffi.cdef("""
|
||||
EVP_PKEY *X509_get_pubkey(X509 *x);
|
||||
void X509_free(X509 *a);
|
||||
|
||||
int EVP_PKEY_size(EVP_PKEY *pkey);
|
||||
RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
|
||||
void RSA_free(RSA *r);
|
||||
|
||||
@ -196,6 +205,15 @@ ffi.cdef("""
|
||||
void EC_KEY_free(EC_KEY *key);
|
||||
""")
|
||||
|
||||
if version_info < (3, ):
|
||||
ffi.cdef("""
|
||||
int EVP_PKEY_size(EVP_PKEY *pkey);
|
||||
""")
|
||||
else:
|
||||
ffi.cdef("""
|
||||
int EVP_PKEY_get_size(EVP_PKEY *pkey);
|
||||
""")
|
||||
|
||||
if version_info < (1, 1):
|
||||
ffi.cdef("""
|
||||
EVP_MD_CTX *EVP_MD_CTX_create(void);
|
||||
|
||||
@ -73,6 +73,8 @@ P_EVP_MD_CTX = c_void_p
|
||||
P_EVP_MD = c_void_p
|
||||
|
||||
P_ENGINE = c_void_p
|
||||
OSSL_PROVIDER = c_void_p
|
||||
OSSL_LIB_CTX = c_void_p
|
||||
|
||||
P_EVP_PKEY = c_void_p
|
||||
EVP_PKEY_CTX = c_void_p
|
||||
@ -97,6 +99,13 @@ try:
|
||||
libcrypto.ERR_free_strings.argtypes = []
|
||||
libcrypto.ERR_free_strings.restype = None
|
||||
|
||||
if version_info >= (3, ):
|
||||
libcrypto.OSSL_PROVIDER_available.argtypes = [OSSL_LIB_CTX, c_char_p]
|
||||
libcrypto.OSSL_PROVIDER_available.restype = c_int
|
||||
|
||||
libcrypto.OSSL_PROVIDER_load.argtypes = [OSSL_LIB_CTX, c_char_p]
|
||||
libcrypto.OSSL_PROVIDER_load.restype = POINTER(OSSL_PROVIDER)
|
||||
|
||||
libcrypto.ERR_get_error.argtypes = []
|
||||
libcrypto.ERR_get_error.restype = c_ulong
|
||||
|
||||
@ -301,10 +310,16 @@ try:
|
||||
libcrypto.EVP_sha512.argtypes = []
|
||||
libcrypto.EVP_sha512.restype = P_EVP_MD
|
||||
|
||||
if version_info < (3, 0):
|
||||
libcrypto.EVP_PKEY_size.argtypes = [
|
||||
P_EVP_PKEY
|
||||
]
|
||||
libcrypto.EVP_PKEY_size.restype = c_int
|
||||
else:
|
||||
libcrypto.EVP_PKEY_get_size.argtypes = [
|
||||
P_EVP_PKEY
|
||||
]
|
||||
libcrypto.EVP_PKEY_get_size.restype = c_int
|
||||
|
||||
libcrypto.EVP_PKEY_get1_RSA.argtypes = [
|
||||
P_EVP_PKEY
|
||||
|
||||
@ -32,6 +32,7 @@ from .._ffi import (
|
||||
new,
|
||||
null,
|
||||
unwrap,
|
||||
write_to_buffer,
|
||||
)
|
||||
from ._libcrypto import libcrypto, LibcryptoConst, libcrypto_version_info, handle_openssl_error
|
||||
from ..errors import AsymmetricKeyError, IncompleteAsymmetricKeyError, SignatureError
|
||||
@ -105,6 +106,16 @@ class PrivateKey(_PrivateKeyBase):
|
||||
pubkey_data = bytes_from_buffer(pubkey_buffer, pubkey_length)
|
||||
|
||||
asn1 = PublicKeyInfo.load(pubkey_data)
|
||||
|
||||
# OpenSSL 1.x suffers from issues trying to use RSASSA-PSS keys, so we
|
||||
# masquerade it as a normal RSA key so the OID checks work
|
||||
if libcrypto_version_info < (3,) and asn1.algorithm == 'rsassa_pss':
|
||||
temp_asn1 = asn1.copy()
|
||||
temp_asn1['algorithm']['algorithm'] = 'rsa'
|
||||
temp_data = temp_asn1.dump()
|
||||
write_to_buffer(pubkey_buffer, temp_data)
|
||||
pubkey_length = len(temp_data)
|
||||
|
||||
pub_evp_pkey = libcrypto.d2i_PUBKEY(null(), buffer_pointer(pubkey_buffer), pubkey_length)
|
||||
if is_null(pub_evp_pkey):
|
||||
handle_openssl_error(0)
|
||||
@ -212,8 +223,13 @@ class Certificate(_CertificateBase):
|
||||
"""
|
||||
|
||||
if not self._public_key and self.x509:
|
||||
# OpenSSL 1.x suffers from issues trying to use RSASSA-PSS keys, so we
|
||||
# masquerade it as a normal RSA key so the OID checks work
|
||||
if libcrypto_version_info < (3,) and self.asn1.public_key.algorithm == 'rsassa_pss':
|
||||
self._public_key = load_public_key(self.asn1.public_key)
|
||||
else:
|
||||
evp_pkey = libcrypto.X509_get_pubkey(self.x509)
|
||||
self._public_key = PublicKey(evp_pkey, self.asn1['tbs_certificate']['subject_public_key_info'])
|
||||
self._public_key = PublicKey(evp_pkey, self.asn1.public_key)
|
||||
|
||||
return self._public_key
|
||||
|
||||
@ -233,6 +249,8 @@ class Certificate(_CertificateBase):
|
||||
|
||||
if signature_algo == 'rsassa_pkcs1v15':
|
||||
verify_func = rsa_pkcs1v15_verify
|
||||
elif signature_algo == 'rsassa_pss':
|
||||
verify_func = rsa_pss_verify
|
||||
elif signature_algo == 'dsa':
|
||||
verify_func = dsa_verify
|
||||
elif signature_algo == 'ecdsa':
|
||||
@ -692,7 +710,7 @@ def load_public_key(source):
|
||||
source must be a byte string, unicode string or
|
||||
asn1crypto.keys.PublicKeyInfo object, not %s
|
||||
''',
|
||||
type_name(public_key)
|
||||
type_name(source)
|
||||
))
|
||||
|
||||
if public_key.algorithm == 'dsa':
|
||||
@ -712,7 +730,15 @@ def load_public_key(source):
|
||||
'''
|
||||
))
|
||||
|
||||
# OpenSSL 1.x suffers from issues trying to use RSASSA-PSS keys, so we
|
||||
# masquerade it as a normal RSA key so the OID checks work
|
||||
if libcrypto_version_info < (3,) and public_key.algorithm == 'rsassa_pss':
|
||||
temp_key = public_key.copy()
|
||||
temp_key['algorithm']['algorithm'] = 'rsa'
|
||||
data = temp_key.dump()
|
||||
else:
|
||||
data = public_key.dump()
|
||||
|
||||
buffer = buffer_from_bytes(data)
|
||||
evp_pkey = libcrypto.d2i_PUBKEY(null(), buffer_pointer(buffer), len(data))
|
||||
if is_null(evp_pkey):
|
||||
@ -928,6 +954,22 @@ def rsa_oaep_decrypt(private_key, ciphertext):
|
||||
return _decrypt(private_key, ciphertext, LibcryptoConst.RSA_PKCS1_OAEP_PADDING)
|
||||
|
||||
|
||||
def _evp_pkey_get_size(evp_pkey):
|
||||
"""
|
||||
Handles the function name change from OpenSSL 1.1 -> 3.0
|
||||
|
||||
:param evp_pkey:
|
||||
The EVP_PKEY of the Certificte or PublicKey to get the size of
|
||||
|
||||
:return:
|
||||
An int of the number of bytes necessary for the key
|
||||
"""
|
||||
|
||||
if libcrypto_version_info < (3, ):
|
||||
return libcrypto.EVP_PKEY_size(evp_pkey)
|
||||
return libcrypto.EVP_PKEY_get_size(evp_pkey)
|
||||
|
||||
|
||||
def _encrypt(certificate_or_public_key, data, padding):
|
||||
"""
|
||||
Encrypts plaintext using an RSA public key or certificate
|
||||
@ -970,7 +1012,7 @@ def _encrypt(certificate_or_public_key, data, padding):
|
||||
rsa = None
|
||||
|
||||
try:
|
||||
buffer_size = libcrypto.EVP_PKEY_size(certificate_or_public_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(certificate_or_public_key.evp_pkey)
|
||||
buffer = buffer_from_bytes(buffer_size)
|
||||
|
||||
rsa = libcrypto.EVP_PKEY_get1_RSA(certificate_or_public_key.evp_pkey)
|
||||
@ -1025,7 +1067,7 @@ def _decrypt(private_key, ciphertext, padding):
|
||||
rsa = None
|
||||
|
||||
try:
|
||||
buffer_size = libcrypto.EVP_PKEY_size(private_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(private_key.evp_pkey)
|
||||
buffer = buffer_from_bytes(buffer_size)
|
||||
|
||||
rsa = libcrypto.EVP_PKEY_get1_RSA(private_key.evp_pkey)
|
||||
@ -1105,7 +1147,9 @@ def rsa_pss_verify(certificate_or_public_key, signature, data, hash_algorithm):
|
||||
OSError - when an error is returned by the OS crypto library
|
||||
"""
|
||||
|
||||
if certificate_or_public_key.algorithm != 'rsa':
|
||||
cp_alg = certificate_or_public_key.algorithm
|
||||
|
||||
if cp_alg != 'rsa' and cp_alg != 'rsassa_pss':
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
The key specified is not an RSA public key, but %s
|
||||
@ -1235,13 +1279,16 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
type_name(data)
|
||||
))
|
||||
|
||||
cp_alg = certificate_or_public_key.algorithm
|
||||
cp_is_rsa = cp_alg == 'rsa' or cp_alg == 'rsassa_pss'
|
||||
|
||||
valid_hash_algorithms = set(['md5', 'sha1', 'sha224', 'sha256', 'sha384', 'sha512'])
|
||||
if certificate_or_public_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if cp_is_rsa and not rsa_pss_padding:
|
||||
valid_hash_algorithms |= set(['raw'])
|
||||
|
||||
if hash_algorithm not in valid_hash_algorithms:
|
||||
valid_hash_algorithms_error = '"md5", "sha1", "sha224", "sha256", "sha384", "sha512"'
|
||||
if certificate_or_public_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if cp_is_rsa and not rsa_pss_padding:
|
||||
valid_hash_algorithms_error += ', "raw"'
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -1251,16 +1298,16 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
repr(hash_algorithm)
|
||||
))
|
||||
|
||||
if certificate_or_public_key.algorithm != 'rsa' and rsa_pss_padding:
|
||||
if not cp_is_rsa and rsa_pss_padding:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
PSS padding can only be used with RSA keys - the key provided is a
|
||||
%s key
|
||||
''',
|
||||
certificate_or_public_key.algorithm.upper()
|
||||
cp_alg.upper()
|
||||
))
|
||||
|
||||
if certificate_or_public_key.algorithm == 'rsa' and hash_algorithm == 'raw':
|
||||
if cp_is_rsa and hash_algorithm == 'raw':
|
||||
if len(data) > certificate_or_public_key.byte_size - 11:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -1279,7 +1326,7 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
if is_null(rsa):
|
||||
handle_openssl_error(0)
|
||||
|
||||
buffer_size = libcrypto.EVP_PKEY_size(certificate_or_public_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(certificate_or_public_key.evp_pkey)
|
||||
decrypted_buffer = buffer_from_bytes(buffer_size)
|
||||
decrypted_length = libcrypto.RSA_public_decrypt(
|
||||
len(signature),
|
||||
@ -1323,14 +1370,14 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
}[hash_algorithm]()
|
||||
|
||||
if libcrypto_version_info < (1,):
|
||||
if certificate_or_public_key.algorithm == 'rsa' and rsa_pss_padding:
|
||||
if cp_is_rsa and rsa_pss_padding:
|
||||
digest = getattr(hashlib, hash_algorithm)(data).digest()
|
||||
|
||||
rsa = libcrypto.EVP_PKEY_get1_RSA(certificate_or_public_key.evp_pkey)
|
||||
if is_null(rsa):
|
||||
handle_openssl_error(0)
|
||||
|
||||
buffer_size = libcrypto.EVP_PKEY_size(certificate_or_public_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(certificate_or_public_key.evp_pkey)
|
||||
decoded_buffer = buffer_from_bytes(buffer_size)
|
||||
decoded_length = libcrypto.RSA_public_decrypt(
|
||||
len(signature),
|
||||
@ -1349,7 +1396,7 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
LibcryptoConst.EVP_MD_CTX_FLAG_PSS_MDLEN
|
||||
)
|
||||
|
||||
elif certificate_or_public_key.algorithm == 'rsa':
|
||||
elif cp_is_rsa:
|
||||
res = libcrypto.EVP_DigestInit_ex(evp_md_ctx, evp_md, null())
|
||||
handle_openssl_error(res)
|
||||
|
||||
@ -1363,7 +1410,7 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
certificate_or_public_key.evp_pkey
|
||||
)
|
||||
|
||||
elif certificate_or_public_key.algorithm == 'dsa':
|
||||
elif cp_alg == 'dsa':
|
||||
digest = getattr(hashlib, hash_algorithm)(data).digest()
|
||||
|
||||
signature_buffer = buffer_from_bytes(signature)
|
||||
@ -1378,7 +1425,7 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
|
||||
res = libcrypto.DSA_do_verify(digest, len(digest), dsa_sig, dsa)
|
||||
|
||||
elif certificate_or_public_key.algorithm == 'ec':
|
||||
elif cp_alg == 'ec':
|
||||
digest = getattr(hashlib, hash_algorithm)(data).digest()
|
||||
|
||||
signature_buffer = buffer_from_bytes(signature)
|
||||
@ -1418,6 +1465,7 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
handle_openssl_error(res)
|
||||
|
||||
# Use the hash algorithm output length as the salt length
|
||||
if libcrypto_version_info < (3, 0):
|
||||
res = libcrypto.EVP_PKEY_CTX_ctrl(
|
||||
evp_pkey_ctx_pointer,
|
||||
LibcryptoConst.EVP_PKEY_RSA,
|
||||
@ -1519,12 +1567,14 @@ def rsa_pss_sign(private_key, data, hash_algorithm):
|
||||
A byte string of the signature
|
||||
"""
|
||||
|
||||
if private_key.algorithm != 'rsa':
|
||||
pkey_alg = private_key.algorithm
|
||||
|
||||
if pkey_alg != 'rsa' and pkey_alg != 'rsassa_pss':
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
The key specified is not an RSA private key, but %s
|
||||
''',
|
||||
private_key.algorithm.upper()
|
||||
pkey_alg.upper()
|
||||
))
|
||||
|
||||
return _sign(private_key, data, hash_algorithm, rsa_pss_padding=True)
|
||||
@ -1637,13 +1687,16 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
type_name(data)
|
||||
))
|
||||
|
||||
pkey_alg = private_key.algorithm
|
||||
pkey_is_rsa = pkey_alg == 'rsa' or pkey_alg == 'rsassa_pss'
|
||||
|
||||
valid_hash_algorithms = set(['md5', 'sha1', 'sha224', 'sha256', 'sha384', 'sha512'])
|
||||
if private_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if pkey_alg == 'rsa' and not rsa_pss_padding:
|
||||
valid_hash_algorithms |= set(['raw'])
|
||||
|
||||
if hash_algorithm not in valid_hash_algorithms:
|
||||
valid_hash_algorithms_error = '"md5", "sha1", "sha224", "sha256", "sha384", "sha512"'
|
||||
if private_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if pkey_is_rsa and not rsa_pss_padding:
|
||||
valid_hash_algorithms_error += ', "raw"'
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -1653,16 +1706,16 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
repr(hash_algorithm)
|
||||
))
|
||||
|
||||
if private_key.algorithm != 'rsa' and rsa_pss_padding:
|
||||
if not pkey_is_rsa and rsa_pss_padding:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
PSS padding can only be used with RSA keys - the key provided is a
|
||||
%s key
|
||||
''',
|
||||
private_key.algorithm.upper()
|
||||
pkey_alg.upper()
|
||||
))
|
||||
|
||||
if private_key.algorithm == 'rsa' and hash_algorithm == 'raw':
|
||||
if pkey_is_rsa and hash_algorithm == 'raw':
|
||||
if len(data) > private_key.byte_size - 11:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -1681,7 +1734,7 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
if is_null(rsa):
|
||||
handle_openssl_error(0)
|
||||
|
||||
buffer_size = libcrypto.EVP_PKEY_size(private_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(private_key.evp_pkey)
|
||||
|
||||
signature_buffer = buffer_from_bytes(buffer_size)
|
||||
signature_length = libcrypto.RSA_private_encrypt(
|
||||
@ -1722,14 +1775,14 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
}[hash_algorithm]()
|
||||
|
||||
if libcrypto_version_info < (1,):
|
||||
if private_key.algorithm == 'rsa' and rsa_pss_padding:
|
||||
if pkey_is_rsa and rsa_pss_padding:
|
||||
digest = getattr(hashlib, hash_algorithm)(data).digest()
|
||||
|
||||
rsa = libcrypto.EVP_PKEY_get1_RSA(private_key.evp_pkey)
|
||||
if is_null(rsa):
|
||||
handle_openssl_error(0)
|
||||
|
||||
buffer_size = libcrypto.EVP_PKEY_size(private_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(private_key.evp_pkey)
|
||||
em_buffer = buffer_from_bytes(buffer_size)
|
||||
res = libcrypto.RSA_padding_add_PKCS1_PSS(
|
||||
rsa,
|
||||
@ -1750,8 +1803,8 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
)
|
||||
handle_openssl_error(signature_length)
|
||||
|
||||
elif private_key.algorithm == 'rsa':
|
||||
buffer_size = libcrypto.EVP_PKEY_size(private_key.evp_pkey)
|
||||
elif pkey_is_rsa:
|
||||
buffer_size = _evp_pkey_get_size(private_key.evp_pkey)
|
||||
signature_buffer = buffer_from_bytes(buffer_size)
|
||||
signature_length = new(libcrypto, 'unsigned int *')
|
||||
|
||||
@ -1771,7 +1824,7 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
|
||||
signature_length = deref(signature_length)
|
||||
|
||||
elif private_key.algorithm == 'dsa':
|
||||
elif pkey_alg == 'dsa':
|
||||
digest = getattr(hashlib, hash_algorithm)(data).digest()
|
||||
|
||||
dsa = libcrypto.EVP_PKEY_get1_DSA(private_key.evp_pkey)
|
||||
@ -1788,7 +1841,7 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
signature_length = libcrypto.i2d_DSA_SIG(dsa_sig, signature_pointer)
|
||||
handle_openssl_error(signature_length)
|
||||
|
||||
elif private_key.algorithm == 'ec':
|
||||
elif pkey_alg == 'ec':
|
||||
digest = getattr(hashlib, hash_algorithm)(data).digest()
|
||||
|
||||
ec_key = libcrypto.EVP_PKEY_get1_EC_KEY(private_key.evp_pkey)
|
||||
@ -1806,7 +1859,7 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
handle_openssl_error(signature_length)
|
||||
|
||||
else:
|
||||
buffer_size = libcrypto.EVP_PKEY_size(private_key.evp_pkey)
|
||||
buffer_size = _evp_pkey_get_size(private_key.evp_pkey)
|
||||
signature_buffer = buffer_from_bytes(buffer_size)
|
||||
signature_length = new(libcrypto, 'size_t *', buffer_size)
|
||||
|
||||
@ -1834,6 +1887,7 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
handle_openssl_error(res)
|
||||
|
||||
# Use the hash algorithm output length as the salt length
|
||||
if libcrypto_version_info < (3, 0):
|
||||
res = libcrypto.EVP_PKEY_CTX_ctrl(
|
||||
evp_pkey_ctx_pointer,
|
||||
LibcryptoConst.EVP_PKEY_RSA,
|
||||
|
||||
@ -5,7 +5,7 @@ import math
|
||||
|
||||
from .._errors import pretty_message
|
||||
from .._ffi import new, null, is_null, buffer_from_bytes, bytes_from_buffer, deref
|
||||
from ._libcrypto import libcrypto, LibcryptoConst, handle_openssl_error
|
||||
from ._libcrypto import libcrypto, libcrypto_legacy_support, LibcryptoConst, handle_openssl_error
|
||||
from ..util import rand_bytes
|
||||
from .._types import type_name, byte_cls
|
||||
|
||||
@ -236,6 +236,9 @@ def rc4_encrypt(key, data):
|
||||
A byte string of the ciphertext
|
||||
"""
|
||||
|
||||
if not libcrypto_legacy_support:
|
||||
raise EnvironmentError('OpenSSL has been compiled without RC4 support')
|
||||
|
||||
if len(key) < 5 or len(key) > 16:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -266,6 +269,9 @@ def rc4_decrypt(key, data):
|
||||
A byte string of the plaintext
|
||||
"""
|
||||
|
||||
if not libcrypto_legacy_support:
|
||||
raise EnvironmentError('OpenSSL has been compiled without RC4 support')
|
||||
|
||||
if len(key) < 5 or len(key) > 16:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -301,6 +307,9 @@ def rc2_cbc_pkcs5_encrypt(key, data, iv):
|
||||
A tuple of two byte strings (iv, ciphertext)
|
||||
"""
|
||||
|
||||
if not libcrypto_legacy_support:
|
||||
raise EnvironmentError('OpenSSL has been compiled without RC2 support')
|
||||
|
||||
if len(key) < 5 or len(key) > 16:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -345,6 +354,9 @@ def rc2_cbc_pkcs5_decrypt(key, data, iv):
|
||||
A byte string of the plaintext
|
||||
"""
|
||||
|
||||
if not libcrypto_legacy_support:
|
||||
raise EnvironmentError('OpenSSL has been compiled without RC2 support')
|
||||
|
||||
if len(key) < 5 or len(key) > 16:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -487,6 +499,9 @@ def des_cbc_pkcs5_encrypt(key, data, iv):
|
||||
A tuple of two byte strings (iv, ciphertext)
|
||||
"""
|
||||
|
||||
if not libcrypto_legacy_support:
|
||||
raise EnvironmentError('OpenSSL has been compiled without DES support')
|
||||
|
||||
if len(key) != 8:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -530,6 +545,9 @@ def des_cbc_pkcs5_decrypt(key, data, iv):
|
||||
A byte string of the plaintext
|
||||
"""
|
||||
|
||||
if not libcrypto_legacy_support:
|
||||
raise EnvironmentError('OpenSSL has been compiled without DES support')
|
||||
|
||||
if len(key) != 8:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -604,23 +622,9 @@ def _encrypt(cipher, key, data, iv, padding):
|
||||
|
||||
if cipher != 'rc4' and not padding:
|
||||
# AES in CBC mode can be allowed with no padding if
|
||||
# the data is an exact multiple of the key size
|
||||
aes128_no_padding = (
|
||||
cipher == 'aes128' and
|
||||
padding is False and
|
||||
len(data) % 16 == 0
|
||||
)
|
||||
aes192_no_padding = (
|
||||
cipher == 'aes192' and
|
||||
padding is False and
|
||||
len(data) % 24 == 0
|
||||
)
|
||||
aes256_no_padding = (
|
||||
cipher == 'aes256' and
|
||||
padding is False and
|
||||
len(data) % 32 == 0
|
||||
)
|
||||
if aes128_no_padding is False and aes192_no_padding is False and aes256_no_padding is False:
|
||||
# the data is an exact multiple of the block size
|
||||
is_aes = cipher in set(['aes128', 'aes192', 'aes256'])
|
||||
if not is_aes or (is_aes and (len(data) % 16) != 0):
|
||||
raise ValueError('padding must be specified')
|
||||
|
||||
evp_cipher_ctx = None
|
||||
@ -730,7 +734,7 @@ def _decrypt(cipher, key, data, iv, padding):
|
||||
type_name(iv)
|
||||
))
|
||||
|
||||
if cipher != 'rc4' and padding is None:
|
||||
if cipher not in set(['rc4', 'aes128', 'aes192', 'aes256']) and not padding:
|
||||
raise ValueError('padding must be specified')
|
||||
|
||||
evp_cipher_ctx = None
|
||||
|
||||
@ -65,6 +65,25 @@ _PROTOCOL_MAP = {
|
||||
}
|
||||
|
||||
|
||||
def _homogenize_openssl3_error(error_tuple):
|
||||
"""
|
||||
Takes a 3-element tuple from peek_openssl_error() and modifies it
|
||||
to handle the changes in OpenSSL 3.0. That release removed the
|
||||
concept of an error function, meaning the second item in the tuple
|
||||
will always be 0.
|
||||
|
||||
:param error_tuple:
|
||||
A 3-element tuple of integers
|
||||
|
||||
:return:
|
||||
A 3-element tuple of integers
|
||||
"""
|
||||
|
||||
if libcrypto_version_info < (3,):
|
||||
return error_tuple
|
||||
return (error_tuple[0], 0, error_tuple[2])
|
||||
|
||||
|
||||
class TLSSession(object):
|
||||
"""
|
||||
A TLS session object that multiple TLSSocket objects can share for the
|
||||
@ -372,7 +391,7 @@ class TLSSocket(object):
|
||||
def __init__(self, address, port, timeout=10, session=None):
|
||||
"""
|
||||
:param address:
|
||||
A unicode string of the domain name or IP address to conenct to
|
||||
A unicode string of the domain name or IP address to connect to
|
||||
|
||||
:param port:
|
||||
An integer of the port number to connect to
|
||||
@ -516,16 +535,22 @@ class TLSSocket(object):
|
||||
LibsslConst.SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
|
||||
LibsslConst.SSL_R_DH_KEY_TOO_SMALL
|
||||
)
|
||||
dh_key_info_1 = _homogenize_openssl3_error(dh_key_info_1)
|
||||
|
||||
dh_key_info_2 = (
|
||||
LibsslConst.ERR_LIB_SSL,
|
||||
LibsslConst.SSL_F_TLS_PROCESS_SKE_DHE,
|
||||
LibsslConst.SSL_R_DH_KEY_TOO_SMALL
|
||||
)
|
||||
dh_key_info_2 = _homogenize_openssl3_error(dh_key_info_2)
|
||||
|
||||
dh_key_info_3 = (
|
||||
LibsslConst.ERR_LIB_SSL,
|
||||
LibsslConst.SSL_F_SSL3_GET_KEY_EXCHANGE,
|
||||
LibsslConst.SSL_R_BAD_DH_P_LENGTH
|
||||
)
|
||||
dh_key_info_3 = _homogenize_openssl3_error(dh_key_info_3)
|
||||
|
||||
if info == dh_key_info_1 or info == dh_key_info_2 or info == dh_key_info_3:
|
||||
raise_dh_params()
|
||||
|
||||
@ -541,6 +566,8 @@ class TLSSocket(object):
|
||||
LibsslConst.SSL_F_SSL3_GET_RECORD,
|
||||
LibsslConst.SSL_R_WRONG_VERSION_NUMBER
|
||||
)
|
||||
unknown_protocol_info = _homogenize_openssl3_error(unknown_protocol_info)
|
||||
|
||||
if info == unknown_protocol_info:
|
||||
raise_protocol_error(handshake_server_bytes)
|
||||
|
||||
@ -549,6 +576,7 @@ class TLSSocket(object):
|
||||
LibsslConst.SSL_F_SSL23_GET_SERVER_HELLO,
|
||||
LibsslConst.SSL_R_TLSV1_ALERT_PROTOCOL_VERSION
|
||||
)
|
||||
tls_version_info_error = _homogenize_openssl3_error(tls_version_info_error)
|
||||
if info == tls_version_info_error:
|
||||
raise_protocol_version()
|
||||
|
||||
@ -557,7 +585,9 @@ class TLSSocket(object):
|
||||
LibsslConst.SSL_F_SSL23_GET_SERVER_HELLO,
|
||||
LibsslConst.SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE
|
||||
)
|
||||
if info == handshake_error_info:
|
||||
# OpenSSL 3.0 no longer has func codes, so this can be confused
|
||||
# with the following handler which needs to check for client auth
|
||||
if libcrypto_version_info < (3, ) and info == handshake_error_info:
|
||||
raise_handshake()
|
||||
|
||||
handshake_failure_info = (
|
||||
@ -565,6 +595,7 @@ class TLSSocket(object):
|
||||
LibsslConst.SSL_F_SSL3_READ_BYTES,
|
||||
LibsslConst.SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE
|
||||
)
|
||||
handshake_failure_info = _homogenize_openssl3_error(handshake_failure_info)
|
||||
if info == handshake_failure_info:
|
||||
saw_client_auth = False
|
||||
for record_type, _, record_data in parse_tls_records(handshake_server_bytes):
|
||||
@ -590,6 +621,7 @@ class TLSSocket(object):
|
||||
LibsslConst.SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
|
||||
LibsslConst.SSL_R_CERTIFICATE_VERIFY_FAILED
|
||||
)
|
||||
cert_verify_failed_info = _homogenize_openssl3_error(cert_verify_failed_info)
|
||||
|
||||
# It would appear that some versions of OpenSSL (such as on Fedora 30)
|
||||
# don't even have the MD5 digest algorithm included any longer? To
|
||||
@ -599,6 +631,7 @@ class TLSSocket(object):
|
||||
LibsslConst.ASN1_F_ASN1_ITEM_VERIFY,
|
||||
LibsslConst.ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM
|
||||
)
|
||||
unknown_hash_algo_info = _homogenize_openssl3_error(unknown_hash_algo_info)
|
||||
|
||||
if info == unknown_hash_algo_info:
|
||||
chain = extract_chain(handshake_server_bytes)
|
||||
|
||||
@ -651,7 +651,7 @@ def raw_rsa_private_crypt(private_key, data):
|
||||
))
|
||||
|
||||
algo = private_key.asn1['private_key_algorithm']['algorithm'].native
|
||||
if algo != 'rsa':
|
||||
if algo != 'rsa' and algo != 'rsassa_pss':
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
private_key must be an RSA key, not %s
|
||||
@ -712,7 +712,7 @@ def raw_rsa_public_crypt(certificate_or_public_key, data):
|
||||
))
|
||||
|
||||
algo = certificate_or_public_key.asn1['algorithm']['algorithm'].native
|
||||
if algo != 'rsa':
|
||||
if algo != 'rsa' and algo != 'rsassa_pss':
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
certificate_or_public_key must be an RSA key, not %s
|
||||
|
||||
@ -190,7 +190,7 @@ def pkcs12_kdf(hash_algorithm, password, salt, iterations, key_length, id_):
|
||||
|
||||
i = i[0:start] + i_num2 + i[end:]
|
||||
|
||||
# Step 7 (one peice at a time)
|
||||
# Step 7 (one piece at a time)
|
||||
begin = (num - 1) * u
|
||||
to_copy = min(key_length, u)
|
||||
a = a[0:begin] + a2[0:to_copy] + a[begin + to_copy:]
|
||||
|
||||
@ -465,6 +465,22 @@ def raise_self_signed(certificate):
|
||||
raise TLSVerificationError(message, certificate)
|
||||
|
||||
|
||||
def raise_lifetime_too_long(certificate):
|
||||
"""
|
||||
Raises a TLSVerificationError due to a certificate lifetime exceeding
|
||||
the CAB forum certificate lifetime limit
|
||||
|
||||
:param certificate:
|
||||
An asn1crypto.x509.Certificate object
|
||||
|
||||
:raises:
|
||||
TLSVerificationError
|
||||
"""
|
||||
|
||||
message = 'Server certificate verification failed - certificate lifetime is too long'
|
||||
raise TLSVerificationError(message, certificate)
|
||||
|
||||
|
||||
def raise_expired_not_yet_valid(certificate):
|
||||
"""
|
||||
Raises a TLSVerificationError due to certificate being expired, or not yet
|
||||
|
||||
@ -34,7 +34,7 @@ def open_context_handle(provider, verify_only=True):
|
||||
else:
|
||||
raise ValueError('Invalid provider specified: %s' % provider)
|
||||
|
||||
# Ths DSS provider needs a container to allow importing and exporting
|
||||
# The DSS provider needs a container to allow importing and exporting
|
||||
# private keys, but all of the RSA stuff works fine with CRYPT_VERIFYCONTEXT
|
||||
if verify_only or provider != Advapi32Const.MS_ENH_DSS_DH_PROV:
|
||||
container_name = null()
|
||||
|
||||
@ -567,6 +567,8 @@ class Certificate(_WinKey, _CertificateBase):
|
||||
|
||||
if signature_algo == 'rsassa_pkcs1v15':
|
||||
verify_func = rsa_pkcs1v15_verify
|
||||
elif signature_algo == 'rsassa_pss':
|
||||
verify_func = rsa_pss_verify
|
||||
elif signature_algo == 'dsa':
|
||||
verify_func = dsa_verify
|
||||
elif signature_algo == 'ecdsa':
|
||||
@ -1650,8 +1652,10 @@ def _advapi32_load_key(key_object, key_info, container):
|
||||
|
||||
key_type = 'public' if isinstance(key_info, PublicKeyInfo) else 'private'
|
||||
algo = key_info.algorithm
|
||||
if algo == 'rsassa_pss':
|
||||
algo = 'rsa'
|
||||
|
||||
if algo == 'rsa':
|
||||
if algo == 'rsa' or algo == 'rsassa_pss':
|
||||
provider = Advapi32Const.MS_ENH_RSA_AES_PROV
|
||||
else:
|
||||
provider = Advapi32Const.MS_ENH_DSS_DH_PROV
|
||||
@ -1844,6 +1848,8 @@ def _bcrypt_load_key(key_object, key_info, container, curve_name):
|
||||
|
||||
key_type = 'public' if isinstance(key_info, PublicKeyInfo) else 'private'
|
||||
algo = key_info.algorithm
|
||||
if algo == 'rsassa_pss':
|
||||
algo = 'rsa'
|
||||
|
||||
try:
|
||||
alg_selector = key_info.curve[1] if algo == 'ec' else algo
|
||||
@ -2282,7 +2288,9 @@ def rsa_pss_verify(certificate_or_public_key, signature, data, hash_algorithm):
|
||||
OSError - when an error is returned by the OS crypto library
|
||||
"""
|
||||
|
||||
if certificate_or_public_key.algorithm != 'rsa':
|
||||
cp_alg = certificate_or_public_key.algorithm
|
||||
|
||||
if cp_alg != 'rsa' and cp_alg != 'rsassa_pss':
|
||||
raise ValueError('The key specified is not an RSA public key')
|
||||
|
||||
return _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_padding=True)
|
||||
@ -2397,13 +2405,16 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
type_name(data)
|
||||
))
|
||||
|
||||
cp_alg = certificate_or_public_key.algorithm
|
||||
cp_is_rsa = cp_alg == 'rsa' or cp_alg == 'rsassa_pss'
|
||||
|
||||
valid_hash_algorithms = set(['md5', 'sha1', 'sha256', 'sha384', 'sha512'])
|
||||
if certificate_or_public_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if cp_is_rsa and not rsa_pss_padding:
|
||||
valid_hash_algorithms |= set(['raw'])
|
||||
|
||||
if hash_algorithm not in valid_hash_algorithms:
|
||||
valid_hash_algorithms_error = '"md5", "sha1", "sha256", "sha384", "sha512"'
|
||||
if certificate_or_public_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if cp_is_rsa and not rsa_pss_padding:
|
||||
valid_hash_algorithms_error += ', "raw"'
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -2413,13 +2424,13 @@ def _verify(certificate_or_public_key, signature, data, hash_algorithm, rsa_pss_
|
||||
repr(hash_algorithm)
|
||||
))
|
||||
|
||||
if certificate_or_public_key.algorithm != 'rsa' and rsa_pss_padding is not False:
|
||||
if not cp_is_rsa and rsa_pss_padding is not False:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
PSS padding may only be used with RSA keys - signing via a %s key
|
||||
was requested
|
||||
''',
|
||||
certificate_or_public_key.algorithm.upper()
|
||||
cp_alg.upper()
|
||||
))
|
||||
|
||||
if hash_algorithm == 'raw':
|
||||
@ -2468,8 +2479,9 @@ def _advapi32_verify(certificate_or_public_key, signature, data, hash_algorithm,
|
||||
"""
|
||||
|
||||
algo = certificate_or_public_key.algorithm
|
||||
algo_is_rsa = algo == 'rsa' or algo == 'rsassa_pss'
|
||||
|
||||
if algo == 'rsa' and rsa_pss_padding:
|
||||
if algo_is_rsa and rsa_pss_padding:
|
||||
hash_length = {
|
||||
'sha1': 20,
|
||||
'sha224': 28,
|
||||
@ -2483,7 +2495,7 @@ def _advapi32_verify(certificate_or_public_key, signature, data, hash_algorithm,
|
||||
raise SignatureError('Signature is invalid')
|
||||
return
|
||||
|
||||
if algo == 'rsa' and hash_algorithm == 'raw':
|
||||
if algo_is_rsa and hash_algorithm == 'raw':
|
||||
padded_plaintext = raw_rsa_public_crypt(certificate_or_public_key, signature)
|
||||
try:
|
||||
plaintext = remove_pkcs1v15_signature_padding(certificate_or_public_key.byte_size, padded_plaintext)
|
||||
@ -2591,7 +2603,10 @@ def _bcrypt_verify(certificate_or_public_key, signature, data, hash_algorithm, r
|
||||
padding_info = null()
|
||||
flags = 0
|
||||
|
||||
if certificate_or_public_key.algorithm == 'rsa':
|
||||
cp_alg = certificate_or_public_key.algorithm
|
||||
cp_is_rsa = cp_alg == 'rsa' or cp_alg == 'rsassa_pss'
|
||||
|
||||
if cp_is_rsa:
|
||||
if rsa_pss_padding:
|
||||
flags = BcryptConst.BCRYPT_PAD_PSS
|
||||
padding_info_struct_pointer = struct(bcrypt, 'BCRYPT_PSS_PADDING_INFO')
|
||||
@ -2694,7 +2709,9 @@ def rsa_pss_sign(private_key, data, hash_algorithm):
|
||||
A byte string of the signature
|
||||
"""
|
||||
|
||||
if private_key.algorithm != 'rsa':
|
||||
pkey_alg = private_key.algorithm
|
||||
|
||||
if pkey_alg != 'rsa' and pkey_alg != 'rsassa_pss':
|
||||
raise ValueError('The key specified is not an RSA private key')
|
||||
|
||||
return _sign(private_key, data, hash_algorithm, rsa_pss_padding=True)
|
||||
@ -2797,13 +2814,16 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
type_name(data)
|
||||
))
|
||||
|
||||
pkey_alg = private_key.algorithm
|
||||
pkey_is_rsa = pkey_alg == 'rsa' or pkey_alg == 'rsassa_pss'
|
||||
|
||||
valid_hash_algorithms = set(['md5', 'sha1', 'sha256', 'sha384', 'sha512'])
|
||||
if private_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
valid_hash_algorithms |= set(['raw'])
|
||||
|
||||
if hash_algorithm not in valid_hash_algorithms:
|
||||
valid_hash_algorithms_error = '"md5", "sha1", "sha256", "sha384", "sha512"'
|
||||
if private_key.algorithm == 'rsa' and not rsa_pss_padding:
|
||||
if pkey_is_rsa and not rsa_pss_padding:
|
||||
valid_hash_algorithms_error += ', "raw"'
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
@ -2813,13 +2833,13 @@ def _sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
repr(hash_algorithm)
|
||||
))
|
||||
|
||||
if private_key.algorithm != 'rsa' and rsa_pss_padding is not False:
|
||||
if not pkey_is_rsa and rsa_pss_padding is not False:
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
PSS padding may only be used with RSA keys - signing via a %s key
|
||||
was requested
|
||||
''',
|
||||
private_key.algorithm.upper()
|
||||
pkey_alg.upper()
|
||||
))
|
||||
|
||||
if hash_algorithm == 'raw':
|
||||
@ -2867,12 +2887,13 @@ def _advapi32_sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
"""
|
||||
|
||||
algo = private_key.algorithm
|
||||
algo_is_rsa = algo == 'rsa' or algo == 'rsassa_pss'
|
||||
|
||||
if algo == 'rsa' and hash_algorithm == 'raw':
|
||||
if algo_is_rsa and hash_algorithm == 'raw':
|
||||
padded_data = add_pkcs1v15_signature_padding(private_key.byte_size, data)
|
||||
return raw_rsa_private_crypt(private_key, padded_data)
|
||||
|
||||
if algo == 'rsa' and rsa_pss_padding:
|
||||
if algo_is_rsa and rsa_pss_padding:
|
||||
hash_length = {
|
||||
'sha1': 20,
|
||||
'sha224': 28,
|
||||
@ -3003,7 +3024,10 @@ def _bcrypt_sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
padding_info = null()
|
||||
flags = 0
|
||||
|
||||
if private_key.algorithm == 'rsa':
|
||||
pkey_alg = private_key.algorithm
|
||||
pkey_is_rsa = pkey_alg == 'rsa' or pkey_alg == 'rsassa_pss'
|
||||
|
||||
if pkey_is_rsa:
|
||||
if rsa_pss_padding:
|
||||
hash_length = {
|
||||
'md5': 16,
|
||||
@ -3032,7 +3056,7 @@ def _bcrypt_sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
padding_info_struct.pszAlgId = cast(bcrypt, 'wchar_t *', hash_buffer)
|
||||
padding_info = cast(bcrypt, 'void *', padding_info_struct_pointer)
|
||||
|
||||
if private_key.algorithm == 'dsa' and private_key.bit_size > 1024 and hash_algorithm in set(['md5', 'sha1']):
|
||||
if pkey_alg == 'dsa' and private_key.bit_size > 1024 and hash_algorithm in set(['md5', 'sha1']):
|
||||
raise ValueError(pretty_message(
|
||||
'''
|
||||
Windows does not support sha1 signatures with DSA keys based on
|
||||
@ -3056,7 +3080,7 @@ def _bcrypt_sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
buffer_len = deref(out_len)
|
||||
buffer = buffer_from_bytes(buffer_len)
|
||||
|
||||
if private_key.algorithm == 'rsa':
|
||||
if pkey_is_rsa:
|
||||
padding_info = cast(bcrypt, 'void *', padding_info_struct_pointer)
|
||||
|
||||
res = bcrypt.BCryptSignHash(
|
||||
@ -3072,7 +3096,7 @@ def _bcrypt_sign(private_key, data, hash_algorithm, rsa_pss_padding=False):
|
||||
handle_error(res)
|
||||
signature = bytes_from_buffer(buffer, deref(out_len))
|
||||
|
||||
if private_key.algorithm != 'rsa':
|
||||
if not pkey_is_rsa:
|
||||
# Windows doesn't use the ASN.1 Sequence for DSA/ECDSA signatures,
|
||||
# so we have to convert it here for the verification to work
|
||||
signature = DSASignature.from_p1363(signature).dump()
|
||||
|
||||
@ -790,8 +790,8 @@ def _encrypt(cipher, key, data, iv, padding):
|
||||
|
||||
if cipher != 'rc4' and not padding:
|
||||
# AES in CBC mode can be allowed with no padding if
|
||||
# the data is an exact multiple of the key size
|
||||
if not (cipher == 'aes' and padding is False and len(data) % len(key) == 0):
|
||||
# the data is an exact multiple of the block size
|
||||
if not (cipher == 'aes' and len(data) % 16 == 0):
|
||||
raise ValueError('padding must be specified')
|
||||
|
||||
if _backend == 'winlegacy':
|
||||
@ -1014,7 +1014,7 @@ def _decrypt(cipher, key, data, iv, padding):
|
||||
type_name(iv)
|
||||
))
|
||||
|
||||
if cipher != 'rc4' and padding is None:
|
||||
if cipher not in set(['rc4', 'aes']) and not padding:
|
||||
raise ValueError('padding must be specified')
|
||||
|
||||
if _backend == 'winlegacy':
|
||||
|
||||
@ -388,7 +388,7 @@ class TLSSocket(object):
|
||||
def __init__(self, address, port, timeout=10, session=None):
|
||||
"""
|
||||
:param address:
|
||||
A unicode string of the domain name or IP address to conenct to
|
||||
A unicode string of the domain name or IP address to connect to
|
||||
|
||||
:param port:
|
||||
An integer of the port number to connect to
|
||||
|
||||
@ -2,5 +2,5 @@
|
||||
from __future__ import unicode_literals, division, absolute_import, print_function
|
||||
|
||||
|
||||
__version__ = '1.2.1'
|
||||
__version_info__ = (1, 2, 1)
|
||||
__version__ = '1.3.0'
|
||||
__version_info__ = (1, 3, 0)
|
||||
|
||||
@ -1,8 +1,20 @@
|
||||
# oscrypto
|
||||
|
||||
This is a forked version of oscrypto. It includes all the changes in [this](https://github.com/wbond/oscrypto/pull/61) Pull Request,
|
||||
which makes oscrypto work properly on Ubuntu 22.04 and similar distributions
|
||||
that come with OpenSSL3.
|
||||
|
||||
Unfortunately the developer of oscrypto didn't merge that pull request yet,
|
||||
so I had to include my forked version of oscrypto in this plugin. Click [here](https://github.com/wbond/oscrypto)
|
||||
to see the original, un-forked repository.
|
||||
|
||||
Below is the (unmodified) contents of the original readme.md:
|
||||
|
||||
# oscrypto
|
||||
|
||||
A compilation-free, always up-to-date encryption library for Python that works
|
||||
on Windows, OS X, Linux and BSD. Supports the following versions of Python:
|
||||
2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8 and pypy.
|
||||
2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 and pypy.
|
||||
|
||||
- [Supported Operating Systems](#supported-operationg-systems)
|
||||
- [Features](#features)
|
||||
@ -19,8 +31,6 @@ on Windows, OS X, Linux and BSD. Supports the following versions of Python:
|
||||
- [CI Tasks](#ci-tasks)
|
||||
|
||||
[](https://github.com/wbond/oscrypto/actions?workflow=CI)
|
||||
[](https://travis-ci.org/wbond/oscrypto)
|
||||
[](https://ci.appveyor.com/project/wbond/oscrypto)
|
||||
[](https://circleci.com/gh/wbond/oscrypto)
|
||||
[](https://pypi.python.org/pypi/oscrypto)
|
||||
|
||||
@ -58,12 +68,15 @@ care of patching vulnerabilities. Supported operating systems include:
|
||||
- macOS 10.13 with LibreSSL 2.2.7
|
||||
- macOS 10.14
|
||||
- macOS 10.15
|
||||
- macOS 10.15 with OpenSSL 3.0
|
||||
- macOS 11
|
||||
- macOS 12
|
||||
- Linux or BSD
|
||||
- Uses one of:
|
||||
- [OpenSSL 0.9.8](https://www.openssl.org/docs/man0.9.8/)
|
||||
- [OpenSSL 1.0.x](https://www.openssl.org/docs/man1.0.0/)
|
||||
- [OpenSSL 1.1.0](https://www.openssl.org/docs/man1.1.0/)
|
||||
- [OpenSSL 3.0](https://www.openssl.org/docs/man3.0/)
|
||||
- [LibreSSL](http://www.libressl.org/)
|
||||
- Tested on:
|
||||
- Arch Linux with OpenSSL 1.0.2
|
||||
@ -73,6 +86,7 @@ care of patching vulnerabilities. Supported operating systems include:
|
||||
- Ubuntu 15.04 with OpenSSL 1.0.1
|
||||
- Ubuntu 16.04 with OpenSSL 1.0.2 on Raspberry Pi 3 (armhf)
|
||||
- Ubuntu 18.04 with OpenSSL 1.1.x (amd64, arm64, ppc64el)
|
||||
- Ubuntu 22.04 with OpenSSL 3.0 (amd64)
|
||||
|
||||
*OS X 10.6 will not be supported due to a lack of available
|
||||
cryptographic primitives and due to lack of vendor support.*
|
||||
@ -199,7 +213,10 @@ Some downsides include:
|
||||
## Dependencies
|
||||
|
||||
- [*asn1crypto*](https://github.com/wbond/asn1crypto)
|
||||
- Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8 or pypy
|
||||
- Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10 or pypy
|
||||
- OpenSSL/LibreSSL if on Linux¹
|
||||
|
||||
*¹ On Linux, `ctypes.util.find_library()` is used to located OpenSSL. Alpine Linux does not have an appropriate install by default for `find_library()` to work properly. Instead, `oscrypto.use_openssl()` must be called with the path to the OpenSSL shared libraries.*
|
||||
|
||||
## Installation
|
||||
|
||||
@ -220,10 +237,8 @@ pip install oscrypto
|
||||
|
||||
Various combinations of platforms and versions of Python are tested via:
|
||||
|
||||
- [AppVeyor](https://ci.appveyor.com/project/wbond/oscrypto/history)
|
||||
- [CircleCI](https://circleci.com/gh/wbond/oscrypto)
|
||||
- [GitHub Actions](https://github.com/wbond/oscrypto/actions)
|
||||
- [Travis CI](https://travis-ci.org/wbond/oscrypto/builds)
|
||||
- [macOS, Linux, Windows](https://github.com/wbond/oscrypto/actions/workflows/ci.yml) via GitHub Actions
|
||||
- [arm64](https://circleci.com/gh/wbond/oscrypto) via CircleCI
|
||||
|
||||
## Testing
|
||||
|
||||
@ -256,11 +271,36 @@ python run.py tests 20
|
||||
python run.py tests aes 20
|
||||
```
|
||||
|
||||
#### Backend Options
|
||||
|
||||
To run tests using a custom build of OpenSSL, or to use OpenSSL on Windows or
|
||||
Mac, add `use_openssl` after `run.py`, like:
|
||||
|
||||
```bash
|
||||
python run.py use_openssl=/path/to/libcrypto.dylib,/path/to/libssl.dylib tests
|
||||
python run.py use_openssl=/path/to/libcrypto.so,/path/to/libssl.so tests
|
||||
```
|
||||
|
||||
To run tests forcing the use of ctypes, even if cffi is installed, add
|
||||
`use_ctypes` after `run.py`:
|
||||
|
||||
```bash
|
||||
python run.py use_ctypes=true tests
|
||||
```
|
||||
|
||||
To run tests using the legacy Windows crypto functions on Windows 7+, add
|
||||
`use_winlegacy` after `run.py`:
|
||||
|
||||
```bash
|
||||
python run.py use_winlegacy=true tests
|
||||
```
|
||||
|
||||
#### Internet Tests
|
||||
|
||||
To skip tests that require an internet connection, add `skip_internet` after
|
||||
`run.py`:
|
||||
|
||||
```bash
|
||||
python run.py skip_internet=true tests
|
||||
```
|
||||
|
||||
### PyPi Source Distribution
|
||||
@ -272,6 +312,45 @@ PyPi, the full test suite is run via:
|
||||
python setup.py test
|
||||
```
|
||||
|
||||
#### Test Options
|
||||
|
||||
The following env vars can control aspects of running tests:
|
||||
|
||||
##### Force OpenSSL Shared Library Paths
|
||||
|
||||
Setting the env var `OSCRYPTO_USE_OPENSSL` to a string in the form:
|
||||
|
||||
```
|
||||
/path/to/libcrypto.so,/path/to/libssl.so
|
||||
```
|
||||
|
||||
will force use of specific OpenSSL shared libraries.
|
||||
|
||||
This also works on Mac and Windows to force use of OpenSSL instead of using
|
||||
native crypto libraries.
|
||||
|
||||
##### Force Use of ctypes
|
||||
|
||||
By default, oscrypto will use the `cffi` module for FFI if it is installed.
|
||||
|
||||
To use the slightly slower, but more widely-tested, `ctypes` FFI layer, set
|
||||
the env var `OPENSSL_USE_CTYPES=true`.
|
||||
|
||||
##### Force Use of Legacy Windows Crypto APIs
|
||||
|
||||
On Windows 7 and newer, oscrypto will use the CNG backend by default.
|
||||
|
||||
To force use of the older CryptoAPI, set the env var
|
||||
`OPENSSL_USE_WINLEGACY=true`.
|
||||
|
||||
##### Skip Tests Requiring an Internet Connection
|
||||
|
||||
Some of the TLS tests require an active internet connection to ensure that
|
||||
various "bad" server certificates are rejected.
|
||||
|
||||
To skip tests requiring an internet connection, set the env var
|
||||
`OPENSSL_SKIP_INTERNET_TESTS=true`.
|
||||
|
||||
### Package
|
||||
|
||||
When the package has been installed via pip (or another method), the package
|
||||
@ -345,7 +424,7 @@ PowerShell with `Net.WebClient` is used. This configuration sidesteps issues
|
||||
related to getting pip to work properly and messing with `site-packages` for
|
||||
the version of Python being used.
|
||||
|
||||
The `ci` task runs `lint` (if flake8 is avaiable for the version of Python) and
|
||||
The `ci` task runs `lint` (if flake8 is available for the version of Python) and
|
||||
`coverage` (or `tests` if coverage is not available for the version of Python).
|
||||
If the current directory is a clean git working copy, the coverage data is
|
||||
submitted to codecov.io.
|
||||
|
||||
@ -10,7 +10,7 @@ from setuptools.command.egg_info import egg_info
|
||||
|
||||
|
||||
PACKAGE_NAME = 'oscrypto'
|
||||
PACKAGE_VERSION = '1.2.1'
|
||||
PACKAGE_VERSION = '1.3.0'
|
||||
PACKAGE_ROOT = os.path.dirname(os.path.abspath(__file__))
|
||||
|
||||
|
||||
@ -126,8 +126,10 @@ setup(
|
||||
|
||||
'License :: OSI Approved :: MIT License',
|
||||
|
||||
'Programming Language :: Python :: 2',
|
||||
'Programming Language :: Python :: 2.6',
|
||||
'Programming Language :: Python :: 2.7',
|
||||
'Programming Language :: Python :: 3',
|
||||
'Programming Language :: Python :: 3.2',
|
||||
'Programming Language :: Python :: 3.3',
|
||||
'Programming Language :: Python :: 3.4',
|
||||
@ -135,6 +137,8 @@ setup(
|
||||
'Programming Language :: Python :: 3.6',
|
||||
'Programming Language :: Python :: 3.7',
|
||||
'Programming Language :: Python :: 3.8',
|
||||
'Programming Language :: Python :: 3.9',
|
||||
'Programming Language :: Python :: 3.10',
|
||||
'Programming Language :: Python :: Implementation :: PyPy',
|
||||
|
||||
'Topic :: Security :: Cryptography',
|
||||
@ -142,7 +146,7 @@ setup(
|
||||
|
||||
keywords='crypto pki tls ssl x509 certificate encrypt decrypt sign verify rsa dsa ec dh',
|
||||
|
||||
install_requires=['asn1crypto>=1.0.0'],
|
||||
install_requires=['asn1crypto>=1.5.1'],
|
||||
|
||||
packages=find_packages(exclude=['tests*', 'dev*']),
|
||||
package_data=package_data,
|
||||
|
||||
@ -20,6 +20,15 @@
|
||||
"singleinstance": false
|
||||
},
|
||||
"standalone_recently_opened": [
|
||||
{
|
||||
"authors": [
|
||||
"Asato Asato"
|
||||
],
|
||||
"key": "/home/marc/Calibre-Bibliothek/Asato Asato/86--EIGHTY-SIX, Vol. 1 (light novel) (86--EIGHTY-SIX (light novel)) (940)/86--EIGHTY-SIX, Vol. 1 (light novel) (86-- - Asato Asato.epub",
|
||||
"pathtoebook": "/home/marc/Calibre-Bibliothek/Asato Asato/86--EIGHTY-SIX, Vol. 1 (light novel) (86--EIGHTY-SIX (light novel)) (940)/86--EIGHTY-SIX, Vol. 1 (light novel) (86-- - Asato Asato.epub",
|
||||
"timestamp": "2022-09-15T19:09:07.062Z",
|
||||
"title": "86--EIGHTY-SIX, Vol. 1 (light novel) (86--EIGHTY-SIX (light novel))"
|
||||
},
|
||||
{
|
||||
"authors": [
|
||||
"Magica Quartet, Hanokage"
|
||||
|
||||
@ -0,0 +1 @@
|
||||
[{"pos": "epubcfi(/2/2/4/2/2/1:5)", "pos_type": "epubcfi", "timestamp": "2022-08-13T14:14:47.055838+00:00", "type": "last-read"}]
|
||||
@ -0,0 +1 @@
|
||||
[{"pos": "epubcfi(/2/2/4/2@50:50)", "pos_type": "epubcfi", "timestamp": "2022-09-15T19:10:13.146451+00:00", "type": "last-read"}]
|
||||
@ -0,0 +1 @@
|
||||
[]
|
||||
@ -0,0 +1 @@
|
||||
[]
|
||||
Loading…
Reference in New Issue
Block a user