botan.git - Unnamed repository; edit this file 'description' to name the repository.

	Commit message (Collapse)	Author	Age	Files	Lines
*	Add also AES-192 using SSSE3	lloyd	2010-08-12	2	-23/+149
\|
*	Support AES-256 is the SSSE3 implementation	lloyd	2010-08-12	2	-5/+93
\|
*	Use _mm_set_epi32 instead of _mm_set_epi64x - VC++ obnoxiously only	lloyd	2010-08-11	2	-79/+79
\| \| \| \|	supports epi64x in 64-bit mode.
*	Only enable aes_ssse3 when compiling with GCC or Clang. For some dumbass	lloyd	2010-08-09	1	-0/+7
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	reasons, Intel C++ rejects const __m128i foo = _mm_set_epi64x(...) though it will accept if you use one of the _mm_set1 variants. And Visual C++ doesn't know about _mm_set_epi64x() in 32-bit mode for similarly dumb reasons - it works fine compiling for 64 bit but for whatever reason they don't offer this function when compiling as 32 bit. Unfortunately there isn't a good way to specify it's OK with a particular compiler with one arch but not another, so just disable it globally for the time being. The workaround for VC++ is probably to use _mm_set_epi32 and break up the input values into 32 bit chunks. ICC is a lost cause I fear.
*	Add an implementation of AES-128 using SSSE3 instructions. It runs in	lloyd	2010-08-09	3	-0/+454
	constant time and on a Nehalem is significantly faster than the table based version. This implementation technique was invented by Mike Hamburg and described in a paper in CHES 2009 "Accelerating AES with Vector Permute Instructions". This code is basically a translation of his public domain x86-64 assembly code into intrinsics. Todo: Adding support for AES-192 and AES-256; this just requires implementing the key schedules. Currently only tested on an i7 with GCC (32 and 64 bit code); testing/optimization on 32-bit processors with SSSE3 like the Atom, and with Visual C++ and other compilers, are also todos.