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sha: tiny shrink

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This commit is contained in:
Denis Vlasenko 2009-03-12 17:50:50 +00:00
parent ddb1b85053
commit 4a43057268
1 changed files with 5 additions and 8 deletions
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13
libbb/sha1.c
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@ -54,13 +54,12 @@ static inline uint64_t hton64(uint64_t v)
#define SHA1_BLOCK_SIZE 64 #define SHA1_BLOCK_SIZE 64
#define SHA1_DIGEST_SIZE 20
#define SHA1_HASH_SIZE SHA1_DIGEST_SIZE
#define SHA1_MASK (SHA1_BLOCK_SIZE - 1) #define SHA1_MASK (SHA1_BLOCK_SIZE - 1)
static void sha1_process_block64(sha1_ctx_t *ctx) static void sha1_process_block64(sha1_ctx_t *ctx)
{ {
uint32_t w[80], i, a, b, c, d, e, t; unsigned i;
uint32_t w[80], a, b, c, d, e, t;
/* note that words are compiled from the buffer into 32-bit */ /* note that words are compiled from the buffer into 32-bit */
/* words in big-endian order so an order reversal is needed */ /* words in big-endian order so an order reversal is needed */
@ -94,13 +93,13 @@ static void sha1_process_block64(sha1_ctx_t *ctx)
for (i = 0; i < 20; ++i) for (i = 0; i < 20; ++i)
rnd(ch, 0x5a827999); rnd(ch, 0x5a827999);
for (i = 20; i < 40; ++i) for (/*i = 20*/; i < 40; ++i)
rnd(parity, 0x6ed9eba1); rnd(parity, 0x6ed9eba1);
for (i = 40; i < 60; ++i) for (/*i = 40*/; i < 60; ++i)
rnd(maj, 0x8f1bbcdc); rnd(maj, 0x8f1bbcdc);
for (i = 60; i < 80; ++i) for (/*i = 60*/; i < 80; ++i)
rnd(parity, 0xca62c1d6); rnd(parity, 0xca62c1d6);
#undef ch #undef ch
#undef parity #undef parity
@ -392,8 +391,6 @@ void FAST_FUNC sha512_begin(sha512_ctx_t *ctx)
} }
/* SHA1 hash data in an array of bytes into hash buffer and call the */
/* hash_compile function as required. */
void FAST_FUNC sha1_hash(const void *buffer, size_t len, sha1_ctx_t *ctx) void FAST_FUNC sha1_hash(const void *buffer, size_t len, sha1_ctx_t *ctx)
{ {
unsigned in_buf = ctx->total64 & SHA1_MASK; unsigned in_buf = ctx->total64 & SHA1_MASK;