Update pycryptodome requirement from ==3.20.* to ==3.21.*

[dependabot]

Updates the requirements on pycryptodome to permit the latest version.

Release notes

Sourced from pycryptodome's releases.

v3.21.0 - Bourdeaux

New features

• By setting the PYCRYPTODOME_DISABLE_GMP environment variable, the GMP library will not be used even if detected.
• Add support for Curve25519 / X25519.
• Add support for Curve448 / X448.
• Add attribute curve to EccPoint and EccXPoint classes, with the canonical name of the curve.
• GH#781: the label for the SP800_108_Counter KDF may now contain zero bytes. Thanks to Julien Rische.
• GH#814: RSA keys for PSS can be imported.

Resolved issues

• GH#810: fixed negation of Ed25519 points.
• GH#819: accept an RFC5916 ECPrivateKey even if it doesn't contain any of the optional elements (parameters [0] and publicKey[1]).

Other changes

• Remove support for Python 3.5.

Changelog

Sourced from pycryptodome's changelog.

3.21.0 (30 September 2024) ++++++++++++++++++++++++++

New features

• By setting the PYCRYPTODOME_DISABLE_GMP environment variable, the GMP library will not be used even if detected.
• Add support for Curve25519 / X25519.
• Add support for Curve448 / X448.
• Add attribute curve to EccPoint and EccXPoint classes, with the canonical name of the curve.
• GH#781: the label for the SP800_108_Counter KDF may now contain zero bytes. Thanks to Julien Rische.
• GH#814: RSA keys for PSS can be imported.

Resolved issues

• GH#810: fixed negation of Ed25519 points.
• GH#819: accept an RFC5916 ECPrivateKey even if it doesn't contain any of the optional elements (parameters [0] and publicKey[1]).

Other changes

• Remove support for Python 3.5.

3.20.0 (9 January 2024) ++++++++++++++++++++++++++

New features

• Added support for TurboSHAKE128 and TurboSHAKE256.
• Added method Crypto.Hash.new() to generate a hash object given a hash name.
• Added support for AES-GCM encryption of PBES2 and PKCS#8 containers.
• Added support for SHA-2 and SHA-3 algorithms in PBKDF2 when creating PBES2 and PKCS#8 containers.
• Export of RSA keys accepts the prot_params dictionary as parameter to control the number of iterations for PBKDF2 and scrypt.
• C unit tests also run on non-x86 architectures.

Resolved issues

• GH#787: Fixed autodetect logic for GCC 14 in combination with LTO.

3.19.1 (28 December 2023) ++++++++++++++++++++++++++

... (truncated)

Commits

• 5e40a18 Bump version
• cd4cb45 Fix docs and changelog
• d499d27 Decrypt PKCS#8 key even if the password is empty
• 0c86527 Build wheel on Windows 2019
• fdd7892 Bump required version of pycryptodome-test-vectors
• 5040405 Build wheel for Python 3.13
• 19494e0 Bump version for test vectors package
• 66420a7 Fix tests for x448/x25519
• 05bcdff Add tag for Python 3.13
• 2ddda6a Fixed typo in documentation
• Additional commits viewable in compare view

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Summary by Sourcery

Update pycryptodome to version 3.21.0.

New Features:

• Add support for Curve25519 / X25519 and Curve448 / X448.
• Add "curve" attribute to EccPoint and EccXPoint classes with the canonical name of the curve.
• Allow zero bytes in the label for the SP800_108_Counter KDF.
• Enable import of RSA keys for PSS.

Tests:

• Fix tests for x448/x25519.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request updates the pycryptodome dependency from version 3.20.* to 3.21.*. This update introduces new features, resolves issues, and removes support for Python 3.5.

Class diagram showing new ECC-related changes in pycryptodome 3.21

classDiagram
    class EccPoint {
        +curve: str
    }
    class EccXPoint {
        +curve: str
    }

    note for EccPoint "New curve attribute added"
    note for EccXPoint "New curve attribute added"

    class Curve25519
    class Curve448
    class X25519
    class X448

    note for Curve25519 "New curve support"
    note for Curve448 "New curve support"
    note for X25519 "New curve support"
    note for X448 "New curve support"

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File-Level Changes

Change	Details	Files
Updated pycryptodome dependency	Updated version from 3.20.* to 3.21.*	pyproject.toml

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We have skipped reviewing this pull request. Here's why:

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