ge25519_double_scalarmult_precompute.S: Kaushik Nath
ge25519_double_scalarmult_process.S: Kaushik Nath
fe25519_mul.S,fe25519_nsquare.S: Kaushik Nath
mGnP.c: D. J. Bernstein
other code: see amd64-64-24k
