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| author | Paul Kehrer <paul.l.kehrer@gmail.com> | 2013-09-11 09:38:45 -0500 |
|---|---|---|
| committer | Paul Kehrer <paul.l.kehrer@gmail.com> | 2013-09-11 09:38:45 -0500 |
| commit | a1ec262a3596dbba4ff82ff7d05c4f265f794359 (patch) | |
| tree | 42a2b5a50611b58b25821aa80d71c7c6d469a749 /docs/primitives/symmetric-encryption.rst | |
| parent | 9287c2344c6c91ad838a251d3b6fde2a6ea88b56 (diff) | |
| download | cryptography-a1ec262a3596dbba4ff82ff7d05c4f265f794359.tar.gz cryptography-a1ec262a3596dbba4ff82ff7d05c4f265f794359.tar.bz2 cryptography-a1ec262a3596dbba4ff82ff7d05c4f265f794359.zip | |
CFB support
This requires a bit of explanation. OpenSSL has methods that implement
standard CFB, 1-bit CFB (cfb1), and 8-bit CFB (cfb8). Unfortunately,
while old (read: 0.9.7) versions of OpenSSL appear to test these
variants, newer versions have a comment stating that cfb{1,8} are
unsupported. Accordingly, I've backed out any support for the variants
for now. We can add it back into the CFB class if and when we gain a
backend that supports arbitrary s for 1 <= s <= block_size
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