diff options
| -rw-r--r-- | src/crypto/keccak.c | 9 | ||||
| -rw-r--r-- | tests/unit_tests/keccak.cpp | 17 |
2 files changed, 23 insertions, 3 deletions
diff --git a/src/crypto/keccak.c b/src/crypto/keccak.c index 18ed3152f..851c70a25 100644 --- a/src/crypto/keccak.c +++ b/src/crypto/keccak.c @@ -105,9 +105,12 @@ void keccak(const uint8_t *in, size_t inlen, uint8_t *md, int mdlen) memset(st, 0, sizeof(st)); for ( ; inlen >= rsiz; inlen -= rsiz, in += rsiz) { - for (i = 0; i < rsizw; i++) - st[i] ^= swap64le(((uint64_t *) in)[i]); - keccakf(st, KECCAK_ROUNDS); + for (i = 0; i < rsizw; i++) { + uint64_t ina; + memcpy(&ina, in + i * 8, 8); + st[i] ^= swap64le(ina); + } + keccakf(st, KECCAK_ROUNDS); } // last block and padding diff --git a/tests/unit_tests/keccak.cpp b/tests/unit_tests/keccak.cpp index 37da65d76..f4d41a8fa 100644 --- a/tests/unit_tests/keccak.cpp +++ b/tests/unit_tests/keccak.cpp @@ -148,3 +148,20 @@ TEST(keccak, 137_and_1_136) TEST_KECCAK(137, chunks); } +TEST(keccak, alignment) +{ + uint8_t data[6064]; + __attribute__ ((aligned(16))) char adata[6000]; + + for (size_t i = 0; i < sizeof(data) / sizeof(data[0]); ++i) + data[i] = i & 1; + + uint8_t md[32], amd[32]; + for (int offset = 0; offset < 64; ++offset) + { + memcpy(adata, data + offset, 6000); + keccak((const uint8_t*)&data[offset], 6000, md, 32); + keccak((const uint8_t*)adata, 6000, amd, 32); + ASSERT_TRUE(!memcmp(md, amd, 32)); + } +} |