diff options
Diffstat (limited to 'src/crypto/fipsmodule/sha/sha256.c')
| -rw-r--r-- | src/crypto/fipsmodule/sha/sha256.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/crypto/fipsmodule/sha/sha256.c b/src/crypto/fipsmodule/sha/sha256.c index 92a52956..0e424461 100644 --- a/src/crypto/fipsmodule/sha/sha256.c +++ b/src/crypto/fipsmodule/sha/sha256.c @@ -92,7 +92,8 @@ int SHA256_Init(SHA256_CTX *sha) { return 1; } -uint8_t *SHA224(const uint8_t *data, size_t len, uint8_t *out) { +uint8_t *SHA224(const uint8_t *data, size_t len, + uint8_t out[SHA224_DIGEST_LENGTH]) { SHA256_CTX ctx; SHA224_Init(&ctx); SHA224_Update(&ctx, data, len); @@ -101,7 +102,8 @@ uint8_t *SHA224(const uint8_t *data, size_t len, uint8_t *out) { return out; } -uint8_t *SHA256(const uint8_t *data, size_t len, uint8_t *out) { +uint8_t *SHA256(const uint8_t *data, size_t len, + uint8_t out[SHA256_DIGEST_LENGTH]) { SHA256_CTX ctx; SHA256_Init(&ctx); SHA256_Update(&ctx, data, len); @@ -114,14 +116,17 @@ int SHA224_Update(SHA256_CTX *ctx, const void *data, size_t len) { return SHA256_Update(ctx, data, len); } -int SHA224_Final(uint8_t *md, SHA256_CTX *ctx) { - return SHA256_Final(md, ctx); +int SHA224_Final(uint8_t out[SHA224_DIGEST_LENGTH], SHA256_CTX *ctx) { + // SHA224_Init sets |ctx->md_len| to |SHA224_DIGEST_LENGTH|, so this has a + // smaller output. + return SHA256_Final(out, ctx); } #define DATA_ORDER_IS_BIG_ENDIAN #define HASH_CTX SHA256_CTX #define HASH_CBLOCK 64 +#define HASH_DIGEST_LENGTH 32 // Note that FIPS180-2 discusses "Truncation of the Hash Function Output." // default: case below covers for it. It's not clear however if it's permitted @@ -319,6 +324,7 @@ void SHA256_TransformBlocks(uint32_t state[8], const uint8_t *data, #undef DATA_ORDER_IS_BIG_ENDIAN #undef HASH_CTX #undef HASH_CBLOCK +#undef HASH_DIGEST_LENGTH #undef HASH_MAKE_STRING #undef HASH_UPDATE #undef HASH_TRANSFORM |