aes: add mix_columns function to hazmat module#260
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Like the other functions in the `hazmat` module, this is presently an intrinsics-only implementation. On ARMv8 we can use the dedicated `AESMC` instruction. Intel AES-NI has no explicit instruction for mix columns, but it can be emulated by performing `AESIMC` (inverse mix columns) three times.
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Like the other functions in the
hazmatmodule, this is presently an intrinsics-only implementation.On ARMv8 we can use the dedicated
AESMCinstruction.Intel AES-NI has no explicit instruction for mix columns, but it can be emulated by performing
AESIMC(inverse mix columns) three times.cc @zer0x64