diff options
Diffstat (limited to 'arm/sha1.c')
-rw-r--r-- | arm/sha1.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/arm/sha1.c b/arm/sha1.c deleted file mode 100644 index 9e3ae038e8..0000000000 --- a/arm/sha1.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * SHA-1 implementation optimized for ARM - * - * Copyright: (C) 2005 by Nicolas Pitre <nico@cam.org> - * Created: September 17, 2005 - */ - -#include <string.h> -#include "sha1.h" - -extern void sha_transform(uint32_t *hash, const unsigned char *data, uint32_t *W); - -void SHA1_Init(SHA_CTX *c) -{ - c->len = 0; - c->hash[0] = 0x67452301; - c->hash[1] = 0xefcdab89; - c->hash[2] = 0x98badcfe; - c->hash[3] = 0x10325476; - c->hash[4] = 0xc3d2e1f0; -} - -void SHA1_Update(SHA_CTX *c, const void *p, unsigned long n) -{ - uint32_t workspace[80]; - unsigned int partial; - unsigned long done; - - partial = c->len & 0x3f; - c->len += n; - if ((partial + n) >= 64) { - if (partial) { - done = 64 - partial; - memcpy(c->buffer + partial, p, done); - sha_transform(c->hash, c->buffer, workspace); - partial = 0; - } else - done = 0; - while (n >= done + 64) { - sha_transform(c->hash, p + done, workspace); - done += 64; - } - } else - done = 0; - if (n - done) - memcpy(c->buffer + partial, p + done, n - done); -} - -void SHA1_Final(unsigned char *hash, SHA_CTX *c) -{ - uint64_t bitlen; - uint32_t bitlen_hi, bitlen_lo; - unsigned int i, offset, padlen; - unsigned char bits[8]; - static const unsigned char padding[64] = { 0x80, }; - - bitlen = c->len << 3; - offset = c->len & 0x3f; - padlen = ((offset < 56) ? 56 : (64 + 56)) - offset; - SHA1_Update(c, padding, padlen); - - bitlen_hi = bitlen >> 32; - bitlen_lo = bitlen & 0xffffffff; - bits[0] = bitlen_hi >> 24; - bits[1] = bitlen_hi >> 16; - bits[2] = bitlen_hi >> 8; - bits[3] = bitlen_hi; - bits[4] = bitlen_lo >> 24; - bits[5] = bitlen_lo >> 16; - bits[6] = bitlen_lo >> 8; - bits[7] = bitlen_lo; - SHA1_Update(c, bits, 8); - - for (i = 0; i < 5; i++) { - uint32_t v = c->hash[i]; - hash[0] = v >> 24; - hash[1] = v >> 16; - hash[2] = v >> 8; - hash[3] = v; - hash += 4; - } -} |