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Merge pull request #6538 

7178bb5c8 keccak: remove aligned check (moneromooo-monero)
This commit is contained in:
Alexander Blair 2020-07-19 03:38:53 -07:00
parent 61e5208181 7178bb5c84
commit bb0241da6e
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GPG Key ID: C64552D877C32479
1 changed files with 2 additions and 10 deletions
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10
src/crypto/keccak.c
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@ -146,7 +146,6 @@ void keccak1600(const uint8_t *in, size_t inlen, uint8_t *md)
#define KECCAK_BLOCKLEN 136
#define KECCAK_WORDS 17
#define KECCAK_DIGESTSIZE 32
#define IS_ALIGNED_64(p) (0 == (7 & ((const char*)(p) - (const char*)0)))
#define KECCAK_PROCESS_BLOCK(st, block) { \
for (int i_ = 0; i_ < KECCAK_WORDS; i_++){ \
((st))[i_] ^= swap64le(((block))[i_]); \
@ -178,17 +177,10 @@ void keccak_update(KECCAK_CTX * ctx, const uint8_t *in, size_t inlen){
inlen -= left;
}
const bool is_aligned = IS_ALIGNED_64(in);
while (inlen >= KECCAK_BLOCKLEN) {
const uint64_t* aligned_message_block;
if (is_aligned) {
aligned_message_block = (uint64_t*)in;
} else {
memcpy(ctx->message, in, KECCAK_BLOCKLEN);
aligned_message_block = ctx->message;
}
KECCAK_PROCESS_BLOCK(ctx->hash, aligned_message_block);
KECCAK_PROCESS_BLOCK(ctx->hash, ctx->message);
in += KECCAK_BLOCKLEN;
inlen -= KECCAK_BLOCKLEN;
}