diff options
Diffstat (limited to 'src/libutil/sha256.c')
-rw-r--r-- | src/libutil/sha256.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/src/libutil/sha256.c b/src/libutil/sha256.c deleted file mode 100644 index 63ed0ba43011..000000000000 --- a/src/libutil/sha256.c +++ /dev/null @@ -1,238 +0,0 @@ -/* crypto/sha/sha256.c */ -/* ==================================================================== - * Copyright (c) 2004 The OpenSSL Project. All rights reserved - * according to the OpenSSL license [found in ./md32_common.h]. - * ==================================================================== - */ - -#include <stdlib.h> -#include <string.h> - -#include "sha256.h" - -int SHA224_Init (SHA256_CTX *c) - { - c->h[0]=0xc1059ed8UL; c->h[1]=0x367cd507UL; - c->h[2]=0x3070dd17UL; c->h[3]=0xf70e5939UL; - c->h[4]=0xffc00b31UL; c->h[5]=0x68581511UL; - c->h[6]=0x64f98fa7UL; c->h[7]=0xbefa4fa4UL; - c->Nl=0; c->Nh=0; - c->num=0; c->md_len=SHA224_DIGEST_LENGTH; - return 1; - } - -int SHA256_Init (SHA256_CTX *c) - { - c->h[0]=0x6a09e667UL; c->h[1]=0xbb67ae85UL; - c->h[2]=0x3c6ef372UL; c->h[3]=0xa54ff53aUL; - c->h[4]=0x510e527fUL; c->h[5]=0x9b05688cUL; - c->h[6]=0x1f83d9abUL; c->h[7]=0x5be0cd19UL; - c->Nl=0; c->Nh=0; - c->num=0; c->md_len=SHA256_DIGEST_LENGTH; - return 1; - } - -unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md) - { - SHA256_CTX c; - static unsigned char m[SHA224_DIGEST_LENGTH]; - - if (md == NULL) md=m; - SHA224_Init(&c); - SHA256_Update(&c,d,n); - SHA256_Final(md,&c); - return(md); - } - -unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md) - { - SHA256_CTX c; - static unsigned char m[SHA256_DIGEST_LENGTH]; - - if (md == NULL) md=m; - SHA256_Init(&c); - SHA256_Update(&c,d,n); - SHA256_Final(md,&c); - return(md); - } - -int SHA224_Update(SHA256_CTX *c, const void *data, size_t len) -{ return SHA256_Update (c,data,len); } -int SHA224_Final (unsigned char *md, SHA256_CTX *c) -{ return SHA256_Final (md,c); } - -#define DATA_ORDER_IS_BIG_ENDIAN - -#define HASH_LONG uint32_t -#define HASH_LONG_LOG2 2 -#define HASH_CTX SHA256_CTX -#define HASH_CBLOCK SHA_CBLOCK -#define HASH_LBLOCK SHA_LBLOCK -/* - * 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 to truncate to amount of bytes not divisible by 4. I bet not, - * but if it is, then default: case shall be extended. For reference. - * Idea behind separate cases for pre-defined lenghts is to let the - * compiler decide if it's appropriate to unroll small loops. - */ -#define HASH_MAKE_STRING(c,s) do { \ - unsigned long ll; \ - unsigned int n; \ - switch ((c)->md_len) \ - { case SHA224_DIGEST_LENGTH: \ - for (n=0;n<SHA224_DIGEST_LENGTH/4;n++) \ - { ll=(c)->h[n]; HOST_l2c(ll,(s)); } \ - break; \ - case SHA256_DIGEST_LENGTH: \ - for (n=0;n<SHA256_DIGEST_LENGTH/4;n++) \ - { ll=(c)->h[n]; HOST_l2c(ll,(s)); } \ - break; \ - default: \ - if ((c)->md_len > SHA256_DIGEST_LENGTH) \ - return 0; \ - for (n=0;n<(c)->md_len/4;n++) \ - { ll=(c)->h[n]; HOST_l2c(ll,(s)); } \ - break; \ - } \ - } while (0) - -#define HASH_UPDATE SHA256_Update -#define HASH_TRANSFORM SHA256_Transform -#define HASH_FINAL SHA256_Final -#define HASH_BLOCK_HOST_ORDER sha256_block_host_order -#define HASH_BLOCK_DATA_ORDER sha256_block_data_order -void sha256_block_host_order (SHA256_CTX *ctx, const void *in, size_t num); -void sha256_block_data_order (SHA256_CTX *ctx, const void *in, size_t num); - -#include "md32_common.h" - -static const uint32_t K256[64] = { - 0x428a2f98UL,0x71374491UL,0xb5c0fbcfUL,0xe9b5dba5UL, - 0x3956c25bUL,0x59f111f1UL,0x923f82a4UL,0xab1c5ed5UL, - 0xd807aa98UL,0x12835b01UL,0x243185beUL,0x550c7dc3UL, - 0x72be5d74UL,0x80deb1feUL,0x9bdc06a7UL,0xc19bf174UL, - 0xe49b69c1UL,0xefbe4786UL,0x0fc19dc6UL,0x240ca1ccUL, - 0x2de92c6fUL,0x4a7484aaUL,0x5cb0a9dcUL,0x76f988daUL, - 0x983e5152UL,0xa831c66dUL,0xb00327c8UL,0xbf597fc7UL, - 0xc6e00bf3UL,0xd5a79147UL,0x06ca6351UL,0x14292967UL, - 0x27b70a85UL,0x2e1b2138UL,0x4d2c6dfcUL,0x53380d13UL, - 0x650a7354UL,0x766a0abbUL,0x81c2c92eUL,0x92722c85UL, - 0xa2bfe8a1UL,0xa81a664bUL,0xc24b8b70UL,0xc76c51a3UL, - 0xd192e819UL,0xd6990624UL,0xf40e3585UL,0x106aa070UL, - 0x19a4c116UL,0x1e376c08UL,0x2748774cUL,0x34b0bcb5UL, - 0x391c0cb3UL,0x4ed8aa4aUL,0x5b9cca4fUL,0x682e6ff3UL, - 0x748f82eeUL,0x78a5636fUL,0x84c87814UL,0x8cc70208UL, - 0x90befffaUL,0xa4506cebUL,0xbef9a3f7UL,0xc67178f2UL }; - -/* - * FIPS specification refers to right rotations, while our ROTATE macro - * is left one. This is why you might notice that rotation coefficients - * differ from those observed in FIPS document by 32-N... - */ -#define Sigma0(x) (ROTATE((x),30) ^ ROTATE((x),19) ^ ROTATE((x),10)) -#define Sigma1(x) (ROTATE((x),26) ^ ROTATE((x),21) ^ ROTATE((x),7)) -#define sigma0(x) (ROTATE((x),25) ^ ROTATE((x),14) ^ ((x)>>3)) -#define sigma1(x) (ROTATE((x),15) ^ ROTATE((x),13) ^ ((x)>>10)) - -#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z))) -#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) - -#define ROUND_00_15(i,a,b,c,d,e,f,g,h) do { \ - T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i]; \ - h = Sigma0(a) + Maj(a,b,c); \ - d += T1; h += T1; } while (0) - -#define ROUND_16_63(i,a,b,c,d,e,f,g,h,X) do { \ - s0 = X[(i+1)&0x0f]; s0 = sigma0(s0); \ - s1 = X[(i+14)&0x0f]; s1 = sigma1(s1); \ - T1 = X[(i)&0x0f] += s0 + s1 + X[(i+9)&0x0f]; \ - ROUND_00_15(i,a,b,c,d,e,f,g,h); } while (0) - -static void sha256_block (SHA256_CTX *ctx, const void *in, size_t num, int host) - { - uint32_t a,b,c,d,e,f,g,h,s0,s1,T1; - uint32_t X[16]; - int i; - const unsigned char *data=in; - - while (num--) { - - a = ctx->h[0]; b = ctx->h[1]; c = ctx->h[2]; d = ctx->h[3]; - e = ctx->h[4]; f = ctx->h[5]; g = ctx->h[6]; h = ctx->h[7]; - - if (host) - { - const uint32_t *W=(const uint32_t *)data; - - T1 = X[0] = W[0]; ROUND_00_15(0,a,b,c,d,e,f,g,h); - T1 = X[1] = W[1]; ROUND_00_15(1,h,a,b,c,d,e,f,g); - T1 = X[2] = W[2]; ROUND_00_15(2,g,h,a,b,c,d,e,f); - T1 = X[3] = W[3]; ROUND_00_15(3,f,g,h,a,b,c,d,e); - T1 = X[4] = W[4]; ROUND_00_15(4,e,f,g,h,a,b,c,d); - T1 = X[5] = W[5]; ROUND_00_15(5,d,e,f,g,h,a,b,c); - T1 = X[6] = W[6]; ROUND_00_15(6,c,d,e,f,g,h,a,b); - T1 = X[7] = W[7]; ROUND_00_15(7,b,c,d,e,f,g,h,a); - T1 = X[8] = W[8]; ROUND_00_15(8,a,b,c,d,e,f,g,h); - T1 = X[9] = W[9]; ROUND_00_15(9,h,a,b,c,d,e,f,g); - T1 = X[10] = W[10]; ROUND_00_15(10,g,h,a,b,c,d,e,f); - T1 = X[11] = W[11]; ROUND_00_15(11,f,g,h,a,b,c,d,e); - T1 = X[12] = W[12]; ROUND_00_15(12,e,f,g,h,a,b,c,d); - T1 = X[13] = W[13]; ROUND_00_15(13,d,e,f,g,h,a,b,c); - T1 = X[14] = W[14]; ROUND_00_15(14,c,d,e,f,g,h,a,b); - T1 = X[15] = W[15]; ROUND_00_15(15,b,c,d,e,f,g,h,a); - - data += SHA256_CBLOCK; - } - else - { - uint32_t l; - - HOST_c2l(data,l); T1 = X[0] = l; ROUND_00_15(0,a,b,c,d,e,f,g,h); - HOST_c2l(data,l); T1 = X[1] = l; ROUND_00_15(1,h,a,b,c,d,e,f,g); - HOST_c2l(data,l); T1 = X[2] = l; ROUND_00_15(2,g,h,a,b,c,d,e,f); - HOST_c2l(data,l); T1 = X[3] = l; ROUND_00_15(3,f,g,h,a,b,c,d,e); - HOST_c2l(data,l); T1 = X[4] = l; ROUND_00_15(4,e,f,g,h,a,b,c,d); - HOST_c2l(data,l); T1 = X[5] = l; ROUND_00_15(5,d,e,f,g,h,a,b,c); - HOST_c2l(data,l); T1 = X[6] = l; ROUND_00_15(6,c,d,e,f,g,h,a,b); - HOST_c2l(data,l); T1 = X[7] = l; ROUND_00_15(7,b,c,d,e,f,g,h,a); - HOST_c2l(data,l); T1 = X[8] = l; ROUND_00_15(8,a,b,c,d,e,f,g,h); - HOST_c2l(data,l); T1 = X[9] = l; ROUND_00_15(9,h,a,b,c,d,e,f,g); - HOST_c2l(data,l); T1 = X[10] = l; ROUND_00_15(10,g,h,a,b,c,d,e,f); - HOST_c2l(data,l); T1 = X[11] = l; ROUND_00_15(11,f,g,h,a,b,c,d,e); - HOST_c2l(data,l); T1 = X[12] = l; ROUND_00_15(12,e,f,g,h,a,b,c,d); - HOST_c2l(data,l); T1 = X[13] = l; ROUND_00_15(13,d,e,f,g,h,a,b,c); - HOST_c2l(data,l); T1 = X[14] = l; ROUND_00_15(14,c,d,e,f,g,h,a,b); - HOST_c2l(data,l); T1 = X[15] = l; ROUND_00_15(15,b,c,d,e,f,g,h,a); - } - - for (i=16;i<64;i+=8) - { - ROUND_16_63(i+0,a,b,c,d,e,f,g,h,X); - ROUND_16_63(i+1,h,a,b,c,d,e,f,g,X); - ROUND_16_63(i+2,g,h,a,b,c,d,e,f,X); - ROUND_16_63(i+3,f,g,h,a,b,c,d,e,X); - ROUND_16_63(i+4,e,f,g,h,a,b,c,d,X); - ROUND_16_63(i+5,d,e,f,g,h,a,b,c,X); - ROUND_16_63(i+6,c,d,e,f,g,h,a,b,X); - ROUND_16_63(i+7,b,c,d,e,f,g,h,a,X); - } - - ctx->h[0] += a; ctx->h[1] += b; ctx->h[2] += c; ctx->h[3] += d; - ctx->h[4] += e; ctx->h[5] += f; ctx->h[6] += g; ctx->h[7] += h; - - } - } - -/* - * Idea is to trade couple of cycles for some space. On IA-32 we save - * about 4K in "big footprint" case. In "small footprint" case any gain - * is appreciated:-) - */ -void HASH_BLOCK_HOST_ORDER (SHA256_CTX *ctx, const void *in, size_t num) -{ sha256_block (ctx,in,num,1); } - -void HASH_BLOCK_DATA_ORDER (SHA256_CTX *ctx, const void *in, size_t num) -{ sha256_block (ctx,in,num,0); } - - |