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crypto: blake2s - generic C library implementation and selftest

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The C implementation was originally based on Samuel Neves' public
domain reference implementation but has since been heavily modified
for the kernel. We're able to do compile-time optimizations by moving
some scaffolding around the final function into the header file.

Information: https://blake2.net/

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Co-developed-by: Samuel Neves <sneves@dei.uc.pt>
[ardb: - move from lib/zinc to lib/crypto
       - remove simd handling
       - rewrote selftest for better coverage
       - use fixed digest length for blake2s_hmac() and rename to
         blake2s256_hmac() ]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jason A. Donenfeld
2019-11-08 13:22:28 +01:00
committed by Herbert Xu
parent c12d3362a7
commit 66d7fb94e4
7 changed files with 1019 additions and 0 deletions
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19
include/crypto/internal/blake2s.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
#ifndef BLAKE2S_INTERNAL_H
#define BLAKE2S_INTERNAL_H
#include <crypto/blake2s.h>
void blake2s_compress_generic(struct blake2s_state *state,const u8 *block,
size_t nblocks, const u32 inc);
void blake2s_compress_arch(struct blake2s_state *state,const u8 *block,
size_t nblocks, const u32 inc);
static inline void blake2s_set_lastblock(struct blake2s_state *state)
{
state->f[0] = -1;
}
#endif /* BLAKE2S_INTERNAL_H */