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* Add a new subclass for BlockCipher BlockCipher_Fixed_Block_Size, whichlloyd2010-10-131-8/+8
| | | | | | | | | | | | | | sets the block size statically and also creates an enum with the size. Use the enum instead of calling block_size() where possible, since that uses two virtual function calls per block which is quite unfortunate. The real advantages here as compared to the previous version which kept the block size as a per-object u32bit: - The compiler can inline the constant as an immediate operand (previously it would load the value via an indirection on this) - Removes 32 bits per object overhead (except in cases with actually variable block sizes, which are very few and rarely used)
* s/BLOCK_SIZE/block_size()/lloyd2010-10-131-8/+8
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* Use size_t rather than u32bit in SymmetricAlgorithmlloyd2010-10-131-1/+1
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* Use size_t rather than u32bit for the blocks argument of encrypt_nlloyd2010-10-121-4/+4
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* Anywhere where we use MemoryRegion::begin to get access to the raw pointerlloyd2010-09-131-4/+4
| | | | | representation (rather than in an interator context), instead use &buf[0], which works for both MemoryRegion and std::vector
* Make many more headers internal-only.lloyd2009-12-161-1/+1
| | | | | | | | | | | | | Fixes for the amalgamation generator for internal headers. Remove BOTAN_DLL exporting macros from all internal-only headers; the classes/functions there don't need to be exported, and avoiding the PIC/GOT indirection can be a big win. Add missing BOTAN_DLLs where necessary, mostly gfpmath and cvc For GCC, use -fvisibility=hidden and set BOTAN_DLL to the visibility __attribute__ to export those classes/functions.
* Change the BlockCipher interface to support multi-block encryption andlloyd2009-08-111-8/+20
| | | | | | | | | 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 camelloyd2009-03-301-13/+15
| | | | | | | | | | | | | | | 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
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