The SSSE3 intrinsics were performing aligned loads using _mm_load_si128 using user supplied pointers. The pointers are only a byte pointer, so its alignment can drop to 1 or 2. Switching to _mm_loadu_si128 will sidestep potential problems. The crash surfaced under Win32 testing.
Switch to memcpy's when performing bulk assignment x[0]=y[0] ... x[3]=y[3]. I believe Yun used the pattern to promote vectorization. Some compilers appear to be braindead and issue integer move's one word at a time. Non-braindead compiler will still take the optimization when advantageous, and slower compilers will benefit from the bulk move. We also cherry picked vectorization opportunities, like in ARIA_GSRK_NEON.
Remove keyBits variable. We now use UncheckedSetKey's keylen throughout.
Also fix a typo in CRYPTOPP_BOOL_SSSE3_INTRINSICS_AVAILABLE. __SSSE3__ was listed twice.
This is the reference implementation, test data and test vectors from the ARIA.zip package on the KISA website. The website is located at http://seed.kisa.or.kr/iwt/ko/bbs/EgovReferenceList.do?bbsId=BBSMSTR_000000000002.
We have optimized routines that improve Key Setup and Bulk Encryption performance, but they are not being checked-in at the moment. The ARIA team is updating its implementation for contemporary hardware and we would like to use it as a starting point before we wander too far away from the KISA implementation.
