From 9bf0105e251fdedb5bd2cc2f04d99339d640f0af Mon Sep 17 00:00:00 2001 From: Alexandro Sanchez Date: Mon, 17 Sep 2018 16:32:55 +0200 Subject: Fixed Keccak implementation on big-endian platforms --- src/crypto/keccak.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'src/crypto') diff --git a/src/crypto/keccak.c b/src/crypto/keccak.c index 8fcd2138e..b5946036e 100644 --- a/src/crypto/keccak.c +++ b/src/crypto/keccak.c @@ -5,6 +5,7 @@ #include #include #include +#include "common/int-util.h" #include "hash-ops.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 (i = 0; i < rsizw; i++) - st[i] ^= ((uint64_t *) in)[i]; + st[i] ^= swap64le(((uint64_t *) in)[i]); 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; for (i = 0; i < rsizw; i++) - st[i] ^= ((uint64_t *) temp)[i]; + st[i] ^= swap64le(((uint64_t *) temp)[i]); 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) -- cgit v1.2.3