add optimized SHA1 algorithm

This optimized implementation of the SHA1 algorithm is about 28%
faster than the old one (on sapphire hardware) but assumes
little-endianness.  Add it, but continue using the old implementation
on big-endian hardware.
2 files changed
tree: 7147bcd17e46b8e207b0bfe1cc768d80859b2333
  1. Android.mk
  2. NOTICE
  3. include/
  4. rsa.c
  5. sha.c
  6. tools/