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* Remove all exception specifications. The way these are designed in C++ islloyd2009-10-221-1/+1
| | | | | | just too fragile and not that useful. Something like Java's checked exceptions might be nice, but simply killing the process entirely if an unexpected exception is thrown is not exactly useful for something trying to be robust.
* Make encrypt_n public for all BlockCipher implementations - unlike thelloyd2009-08-111-2/+4
| | | | | | enc/dec functions it replaces, these are public interfaces. Add the first bits of a SSE2 implementation of Serpent. Currently incomplete.
* Change the BlockCipher interface to support multi-block encryption andlloyd2009-08-111-2/+2
| | | | | | | | | decryption. Currently only used for counter mode. Doesn't offer much advantage as-is (though might help slightly, in terms of cache effects), but allows for SIMD implementations to process multiple blocks in parallel when possible. Particularly thinking here of Serpent; TEA/XTEA also seem promising in this sense, as is Threefish once that is implemented as a standalone block cipher.
* Thomas Moschny passed along a request from the Fedora packagers which camelloyd2009-03-301-7/+9
| | | | | | | | | | | | | | | up during the Fedora submission review, that each source file include some text about the license. One handy Perl script later and each file now has the line Distributed under the terms of the Botan license after the copyright notices. While I was in there modifying every file anyway, I also stripped out the remainder of the block comments (lots of astericks before and after the text); this is stylistic thing I picked up when I was first learning C++ but in retrospect it is not a good style as the structure makes it harder to modify comments (with the result that comments become fewer, shorter and are less likely to be updated, which are not good things).
* Rename SymmetricAlgorithm::key to key_schedule to avoid many namelloyd2008-11-091-1/+1
| | | | conflicts/collisions
* Split ciphers into block and stream ciphers. Move base class headerslloyd2008-11-081-0/+41