diff options
| -rw-r--r-- | crypto/modes/gcm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/crypto/modes/gcm.c b/crypto/modes/gcm.c index 2519b19f..8cc138dc 100644 --- a/crypto/modes/gcm.c +++ b/crypto/modes/gcm.c @@ -606,7 +606,8 @@ int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const uint8_t *aad, size_t len) { } #ifdef GHASH - if ((i = (len & (size_t) - 16))) { + i = len & kSizeTWithoutLower4Bits; + if (i != 0) { GHASH(ctx, aad, i); aad += i; len -= i; @@ -895,7 +896,8 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key, } len -= GHASH_CHUNK; } - if ((i = (len & (size_t) - 16))) { + i = len & kSizeTWithoutLower4Bits; + if (i != 0) { GHASH(ctx, in, i); while (len >= 16) { size_t *out_t = (size_t *)out; |