Bump ecdsa from 0.13 to 0.13.3

[dependabot[bot]]

Bumps ecdsa from 0.13 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.

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.

Changelog

Sourced from ecdsa's changelog.

• Release 0.17.0 (27 May 2021)

New API:

• Keys that use explicit curve parameters can now be read and written. Reading of explicit curves can be disabled by using the valid_curve_encodings keyword argument in VerifyingKey.from_pem(), VerifyingKey.from_der(), SigningKey.from_pem(), and SigningKey.from_der().
• Keys can now be written with use of explicit curve parameters, use curve_parameters_encoding keyword argument of VerifyingKey.to_pem(), VerifyingKey.to_der(), SigningKey.to_pem(), or SigningKey.to_der()to specify the format. By defaultnamed_curvewill be used, unless the curve doesn't have an associated OID (as will be the case for an unsupported curve), thenexplicit` encoding will be used.
• Allow specifying acceptable point formats when loading public keys (this also fixes a minor bug where python-ecdsa would accept raw encoding for points in PKCS#8 files). Set of accepted encodings is controlled by valid_encodings keyword argument in ECDH.load_received_public_key_bytes(), VerifyingKey.from_string(), VerifyingKey.from_pem(), VerifyingKey.from_der()`.
• PointJacobi and Point now inherit from AbstractPoint that implements the methods for parsing points. That added from_bytes() and to_bytes() methods to both of them.
• Curve parameters can now be read and written to PEM and DER files. The Curve class supports new to_der(), from_der(), to_pem(), and from_pem() methods.

Doc fix:

• Describe in detail which methods can raise RSZeroError, and that SigningKey.sign_deterministic() won't raise it.

Bug fix:

• Correctly truncate hash values larger than the curve order (only impacted custom curves and the curves added in this release).
• Correctly handle curves for which the order is larger than the prime (only impacted custom curves and the secp160r1 curve added in this release).
• Fix the handling of == and != for Public_key, Private_key, Point, PointJacobi, VerifyingKey, and SigningKey so that it behaves consistently and in the expected way both in Python 2 and Python 3.
• Implement lock-less algorithm inside PointJacobi for keeping shared state so that when a calculation is aborted with KeyboardInterrupt, the state doesn't become corrupted (this fixes the occasional breakage of ecdsa in interactive shells).

New features:

• The speed.py script now provides performance for signature verification without the use of precomputation.
• New curves supported: secp112r1, secp112r2, secp128r1, secp160r1.

Performance:

... (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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