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Bump ecdsa from 0.13.2 to 0.13.3 #6

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@dependabot dependabot bot commented on behalf of github Jan 20, 2020

Bumps ecdsa from 0.13.2 to 0.13.3.

Release notes

Sourced from ecdsa's releases.

ecdsa 0.13.3

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.

Changelog

Sourced from ecdsa's changelog.

  • Release 0.15 (02 Jan 2020)

Bug fixes:
from curves import * will now correctly import BRAINPOOLP256r1 and
BRAINPOOLP320r1 curves.

New features:
ECDH operations have a public explicit API.
Large hashes are now supported with small curves (e.g. SHA-256 can be used
with NIST192p).
VerifyingKey now supports the precompute() method to further speed up
signature verification with the given instance of the key.

New API:
VerifyingKey, SigningKey, Public_key, Private_key and
CurveFp now have __eq__ methods.
ecdsa.ecdh module and ECDH class.
PointJacobi added.
VerifyingKey.verify_digest, SigningKey.sign_digest and
SigningKey.sign_digest_deterministic methods now accept allow_truncate
argument to enable use of hashes larger than the curve order.
VerifyingKey from_pem and from_der now accept hashfunc parameter
like other from* methods.
VerifyingKey has precompute method now.
VerifyingKey.from_public_point may now not perform validation of public
point when validate_point=False argument is passed to method.
CurveFp constructor now accepts the h parameter - the cofactor of the
elliptic curve, it's used for selection of algorithm of public point
verification.

Performance:
randrange now will now perform much fewer calls to system random number
generator.
PointJacobi introduced and used as the underlying implementation; speeds up
the library by a factor of about 20.
Library has now optional dependencies on gmpy and gmpy2. When they are
availbale, the elliptic curve calculations will be about 3 times faster.

Maintenance:
expected minimum version of six module (1.9.0) is now specified explicitly
in setup.py and tested against.
Significantly faster test suite execution.

  • Release 0.14.1 (06 Nov 2019)

Remove the obsolete six.py file from wheel

  • Release 0.14 (06 Nov 2019)

Bug fixes:

... (truncated)
Commits
  • 7add221 update NEWS file for 0.13.3
  • 5c4c74a Merge pull request #124 from tomato42/backport-sig-decode
  • 1eb2c04 update README with error handling of from_string() and from_der()
  • b95be03 execute also new tests in Travis
  • 99c907d harden also key decoding
  • 3427fa2 ensure that the encoding is actually the minimal one for length and integer
  • 563d2ee make variable names in remove_integer more aproppriate
  • 14abfe0 explicitly specify the distro to get py26 and py33
  • 9080d1d fix length decoding
  • 897178c give the same handling to string encoded signatures as to DER
  • Additional commits viewable in compare view

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@dependabot dependabot bot added the dependencies Pull requests that update a dependency file label Jan 20, 2020
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