Fix CVE-2019-14853 - possible DoS caused by malformed signature decoding
Fix CVE-2019-14859 - signature malleability caused by insufficient checks of DER encoding
Also harden key decoding from string and DER encodings.
ecdsa 0.13.2
Restore compatibility of setup.py with Python 2.6 and 2.7.
ecdsa 0.13.1
Fix the PyPI wheel - the old version included .pyc files.
New API:
VerifyingKey.precompute() supports lazy argument to delay precomputation
to the first time the key is used to verify a signature.
Doc fixes:
Documentation for the VerifyingKey.precompute() method.
Bug fix:
Make created signatures correct when the hash used is bigger than the curve
order bit size and the curve order is not a multiple of 8 (this affects
only users of custom curves or hashes with output larger than 512 bits).
Performance:
Speed up library load time by calculating the generator point multiplication
tables the first time the points are used, not when they are initialised.
Maintenance:
Include Python 3.9 in CI testing.
Test coverage for the VerifyingKey.precompute() method.
Small speed-ups for the test suite.
Release 0.16.0 (27 Aug 2020)
New features:
Support for reading and writing private keys in PKCS#8 format.
New API:
to_pem and to_der now accept new parameter, format, to specify
the format of the encoded files, either the dafault, legacy "ssleay", or
the new pkcs8 to use PKCS#8. Note that only unencrypted PKCS#8 files are
supported.
Add allow_truncate to verify in VerifyingKey, it defaults to True,
when specified as False, use of large hashes smaller than curves will be
disallowed (as it was in 0.14.1 and earlier).
Bug fix:
Correctly calculate signatures for private keys equal to n-1.
Make PointJacobi and thus SigningKey and VerifyingKey pickleable.
Doc fixes:
to_pem functions return bytes not str, document them as such.
from_pem and from_pem in SigningKey returns SigningKey, document them
as such.
Maintenance:
Ensure that version checks will work with Python 4.
Format the source with black.
Fix uses of assert_ in test suite.
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Aareon
commented
3 years ago
Bumps ecdsa from 0.13 to 0.13.3.
Release notes
Sourced from ecdsa's releases.
Changelog
Sourced from ecdsa's changelog.
... (truncated)
Commits
7add221update NEWS file for 0.13.35c4c74aMerge pull request #124 from tomato42/backport-sig-decode1eb2c04update README with error handling of from_string() and from_der()b95be03execute also new tests in Travis99c907dharden also key decoding3427fa2ensure that the encoding is actually the minimal one for length and integer563d2eemake variable names in remove_integer more aproppriate14abfe0explicitly specify the distro to get py26 and py339080d1dfix length decoding897178cgive the same handling to string encoded signatures as to DERDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase.Dependabot will merge this PR once CI passes on it, as requested by @Aareon.
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