barbican/releasenotes/notes/allow-aes-xts-512-bitlength...

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---
fixes:
- |
By default barbican checks only the algorithm and the bit_length when
creating a new secret. The xts-mode cuts the key in half for aes, so for
using aes-256 with xts, you have to use a 512 bit key, but barbican allows
only a maximum of 256 bit. A check for the mode within the
_is_algorithm_supported method of the class SimpleCryptoPlugin was added
to allow 512 bit keys for aes-xts in this plugin.