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* Add a new looping load_be / load_le for loading large arrays at once, andlloyd2009-10-291-8/+3
| | | | | | | | change some of the hash functions to use it as low hanging fruit. Probably could use further optimization (just unrolls x4 currently), but merely having it as syntax is good as it allows optimizing many functions at once (eg using SSE2 to do 4-way byteswaps).
* propagate from branch 'net.randombit.botan' (head ↵lloyd2009-10-291-31/+43
|\ | | | | | | | | | | 4fd7eb9630271d3c1dfed21987ef864680d4ce7b) to branch 'net.randombit.botan.general-simd' (head 91df868149cdc4754d340e6103028acc82182609)
| * Format for easier readinglloyd2009-10-291-31/+43
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* | Unroll SHA-1's expansion loop from x4 to x8; ~7% faster on Core2lloyd2009-10-291-1/+5
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* Remove the 'realname' attribute on all modules and cc/cpu/os info files.lloyd2009-10-291-2/+0
| | | | | Pretty much useless and unused, except for listing the module names in build.h and the short versions totally suffice for that.
* Remove all exception specifications. The way these are designed in C++ islloyd2009-10-222-2/+2
| | | | | | 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.
* Remove add blocks from hash function info.txt fileslloyd2009-09-291-7/+0
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* Many source files included bit_ops.h when what was really desired waslloyd2009-05-131-1/+1
| | | | | rotate.h, or when it was not needed at all. Remove or change the includes as needed.
* Thomas Moschny passed along a request from the Fedora packagers which camelloyd2009-03-302-38/+42
| | | | | | | | | | | | | | | 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).
* Do a minor optimization in some of the compression functions, loadinglloyd2008-11-231-5/+8
| | | | | the registers only once and carrying the values over between loop iterations.
* I had not anticipated this being really worthwhile, but it turns outlloyd2008-11-232-53/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to have been so! Change MDx_HashFunction::hash to a new compress_n which hashes an arbitrary number of blocks. I had a thought this might reduce a bit of loop overhead but the results were far better than I anticipated. Speedup across the board of about 2%, and very noticable (+10%) increases for MD4 and Tiger (probably b/c both of those have so few instructions in each iteration of the compression function). Before: SHA-1: amd64: 211.9 MiB/s core: 210.0 MiB/s sse2: 295.2 MiB/s MD4: 476.2 MiB/s MD5: 355.2 MiB/s SHA-256: 99.8 MiB/s SHA-512: 151.4 MiB/s RIPEMD-128: 326.9 MiB/s RIPEMD-160: 225.1 MiB/s Tiger: 214.8 MiB/s Whirlpool: 38.4 MiB/s After: SHA-1: amd64: 215.6 MiB/s core: 213.8 MiB/s sse2: 299.9 MiB/s MD4: 528.4 MiB/s MD5: 368.8 MiB/s SHA-256: 103.9 MiB/s SHA-512: 156.8 MiB/s RIPEMD-128: 334.8 MiB/s RIPEMD-160: 229.7 MiB/s Tiger: 240.7 MiB/s Whirlpool: 38.6 MiB/s
* Derive x86, x86-64, and SSE2 implementations of SHA-1 directly from SHA_160lloyd2008-09-292-2/+15
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* Rename all modinfo.txt files to info.txt, since they are all (none) oflloyd2008-09-291-0/+0
| | | | | them modules now. In any case there is no distinction so info.txt seems better.
* Make mdx_hash also a module, which most of the hash functions depend on.lloyd2008-09-281-0/+4
| | | | | | Correct the configure program so modules are not autoloaded if their dependences are not available. (Eg, --no-module=mdx_hash will disable MD4, MD5, SHA-1, etc rather than cause a compliation failure)
* Move all modules into src/ directorylloyd2008-09-283-0/+186
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