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Fixed Keccak implementation on big-endian platforms

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Alexandro Sanchez 2018-09-17 16:32:55 +02:00 committed by Alexandro Sanchez Bach
parent bb30a72367
commit 9bf0105e25
1 changed files with 8 additions and 3 deletions
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11
src/crypto/keccak.c
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@ -5,6 +5,7 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h> #include <unistd.h>
#include "common/int-util.h"
#include "hash-ops.h" #include "hash-ops.h"
#include "keccak.h" #include "keccak.h"
@ -105,7 +106,7 @@ void keccak(const uint8_t *in, size_t inlen, uint8_t *md, int mdlen)
for ( ; inlen >= rsiz; inlen -= rsiz, in += rsiz) { for ( ; inlen >= rsiz; inlen -= rsiz, in += rsiz) {
for (i = 0; i < rsizw; i++) for (i = 0; i < rsizw; i++)
st[i] ^= ((uint64_t *) in)[i]; st[i] ^= swap64le(((uint64_t *) in)[i]);
keccakf(st, KECCAK_ROUNDS); keccakf(st, KECCAK_ROUNDS);
} }
@ -121,11 +122,15 @@ void keccak(const uint8_t *in, size_t inlen, uint8_t *md, int mdlen)
temp[rsiz - 1] |= 0x80; temp[rsiz - 1] |= 0x80;
for (i = 0; i < rsizw; i++) for (i = 0; i < rsizw; i++)
st[i] ^= ((uint64_t *) temp)[i]; st[i] ^= swap64le(((uint64_t *) temp)[i]);
keccakf(st, KECCAK_ROUNDS); keccakf(st, KECCAK_ROUNDS);
memcpy(md, st, mdlen); if (((size_t)mdlen % sizeof(uint64_t)) != 0)
{
local_abort("Bad keccak use");
}
memcpy_swap64le(md, st, mdlen/sizeof(uint64_t));
} }
void keccak1600(const uint8_t *in, size_t inlen, uint8_t *md) void keccak1600(const uint8_t *in, size_t inlen, uint8_t *md)