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| author | Alex Gaynor <alex.gaynor@gmail.com> | 2013-11-19 16:49:26 -0800 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2013-11-19 16:49:26 -0800 |
| commit | 9626b5a50460d2f90baa1f1b8c6a09ccc900c178 (patch) | |
| tree | e6bd8686168074a76711fc17bf18af06a257e4d0 /docs/hazmat | |
| parent | eb7f2a37fee0fdeb70f650b46f580b2eab6d0c05 (diff) | |
| download | cryptography-9626b5a50460d2f90baa1f1b8c6a09ccc900c178.tar.gz cryptography-9626b5a50460d2f90baa1f1b8c6a09ccc900c178.tar.bz2 cryptography-9626b5a50460d2f90baa1f1b8c6a09ccc900c178.zip | |
Validate the IV/nonce length for a given algorithm.
Fixes #159
Diffstat (limited to 'docs/hazmat')
| -rw-r--r-- | docs/hazmat/primitives/interfaces.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/hazmat/primitives/interfaces.rst b/docs/hazmat/primitives/interfaces.rst index 11cff51a..e798c0e6 100644 --- a/docs/hazmat/primitives/interfaces.rst +++ b/docs/hazmat/primitives/interfaces.rst @@ -56,6 +56,18 @@ Interfaces used by the symmetric cipher modes described in The name may be used by a backend to influence the operation of a cipher in conjunction with the algorithm's name. + .. method:: validate_for_algorithm(algorithm) + + :param CipherAlgorithm algorithm: + + Checks that the combination of this mode with the provided algorithm + meets any necessary invariants. This should raise an exception if they + are not met. + + For example, the :class:`~cryptography.hazmat.primitives.modes.CBC` + mode uses this method to check that the provided initialization + vector's length matches the block size of the algorithm. + .. class:: ModeWithInitializationVector |