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| author | Alex Gaynor <alex.gaynor@gmail.com> | 2013-11-13 13:30:30 -0800 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2013-11-13 13:30:30 -0800 |
| commit | 34511c697f6f17915b5fe5a58214bb38d779f4a8 (patch) | |
| tree | 8a51d2a402472a8071e641107eda2ee037f83349 /docs/hazmat/primitives/symmetric-encryption.rst | |
| parent | c2cddd2b1f0bd935ed53ee49446e268d9bf874e7 (diff) | |
| download | cryptography-34511c697f6f17915b5fe5a58214bb38d779f4a8.tar.gz cryptography-34511c697f6f17915b5fe5a58214bb38d779f4a8.tar.bz2 cryptography-34511c697f6f17915b5fe5a58214bb38d779f4a8.zip | |
Use AlreadyFinalized for symmetric ciphers
Diffstat (limited to 'docs/hazmat/primitives/symmetric-encryption.rst')
| -rw-r--r-- | docs/hazmat/primitives/symmetric-encryption.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst index 28b143ba..950ea8b0 100644 --- a/docs/hazmat/primitives/symmetric-encryption.rst +++ b/docs/hazmat/primitives/symmetric-encryption.rst @@ -79,6 +79,7 @@ an "encrypt-then-MAC" formulation as `described by Colin Percival`_. :param bytes data: The data you wish to pass into the context. :return bytes: Returns the data that was encrypted or decrypted. + :raises cryptography.exceptions.AlreadyFinalized: See :meth:`finalize` When the ``Cipher`` was constructed in a mode that turns it into a stream cipher (e.g. @@ -90,6 +91,10 @@ an "encrypt-then-MAC" formulation as `described by Colin Percival`_. :return bytes: Returns the remainder of the data. + Once ``finalize`` is called this object can no longer be used and + :meth:`update` will raise + :class:`~cryptography.exceptions.AlreadyFinalized`. + Algorithms ~~~~~~~~~~ |