| 1 |
/* |
| 2 |
* sha512.c |
| 3 |
* |
| 4 |
* Written by Jari Ruusu, April 16 2001 |
| 5 |
* |
| 6 |
* Copyright 2001 by Jari Ruusu. |
| 7 |
* Redistribution of this file is permitted under the GNU Public License. |
| 8 |
*/ |
| 9 |
|
| 10 |
#ifdef HAVE_CONFIG_H |
| 11 |
#include <config.h> |
| 12 |
#endif |
| 13 |
|
| 14 |
#include <string.h> |
| 15 |
#include <string.h> |
| 16 |
#include <sys/types.h> |
| 17 |
#include "md.h" |
| 18 |
|
| 19 |
/* Define one or more of these. If none is defined, you get all of them */ |
| 20 |
#if !defined(SHA256_NEEDED)&&!defined(SHA512_NEEDED)&&!defined(SHA384_NEEDED) |
| 21 |
# define SHA256_NEEDED 1 |
| 22 |
# define SHA512_NEEDED 1 |
| 23 |
# define SHA384_NEEDED 1 |
| 24 |
#endif |
| 25 |
|
| 26 |
#if defined(SHA256_NEEDED) |
| 27 |
static const u_int32_t sha256_hashInit[8] = { |
| 28 |
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, |
| 29 |
0x1f83d9ab, 0x5be0cd19 |
| 30 |
}; |
| 31 |
static const u_int32_t sha256_K[64] = { |
| 32 |
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, |
| 33 |
0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, |
| 34 |
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, |
| 35 |
0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, |
| 36 |
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, |
| 37 |
0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, |
| 38 |
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, |
| 39 |
0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, |
| 40 |
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, |
| 41 |
0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, |
| 42 |
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 |
| 43 |
}; |
| 44 |
#endif |
| 45 |
|
| 46 |
#if defined(SHA512_NEEDED) |
| 47 |
static const u_int64_t sha512_hashInit[8] = { |
| 48 |
0x6a09e667f3bcc908UL, 0xbb67ae8584caa73bUL, 0x3c6ef372fe94f82bUL, |
| 49 |
0xa54ff53a5f1d36f1UL, 0x510e527fade682d1UL, 0x9b05688c2b3e6c1fUL, |
| 50 |
0x1f83d9abfb41bd6bUL, 0x5be0cd19137e2179UL |
| 51 |
}; |
| 52 |
#endif |
| 53 |
|
| 54 |
#if defined(SHA384_NEEDED) |
| 55 |
static const u_int64_t sha384_hashInit[8] = { |
| 56 |
0xcbbb9d5dc1059ed8UL, 0x629a292a367cd507UL, 0x9159015a3070dd17UL, |
| 57 |
0x152fecd8f70e5939UL, 0x67332667ffc00b31UL, 0x8eb44a8768581511UL, |
| 58 |
0xdb0c2e0d64f98fa7UL, 0x47b5481dbefa4fa4UL |
| 59 |
}; |
| 60 |
#endif |
| 61 |
|
| 62 |
#if defined(SHA512_NEEDED) || defined(SHA384_NEEDED) |
| 63 |
static const u_int64_t sha512_K[80] = { |
| 64 |
0x428a2f98d728ae22UL, 0x7137449123ef65cdUL, 0xb5c0fbcfec4d3b2fUL, |
| 65 |
0xe9b5dba58189dbbcUL, 0x3956c25bf348b538UL, 0x59f111f1b605d019UL, |
| 66 |
0x923f82a4af194f9bUL, 0xab1c5ed5da6d8118UL, 0xd807aa98a3030242UL, |
| 67 |
0x12835b0145706fbeUL, 0x243185be4ee4b28cUL, 0x550c7dc3d5ffb4e2UL, |
| 68 |
0x72be5d74f27b896fUL, 0x80deb1fe3b1696b1UL, 0x9bdc06a725c71235UL, |
| 69 |
0xc19bf174cf692694UL, 0xe49b69c19ef14ad2UL, 0xefbe4786384f25e3UL, |
| 70 |
0x0fc19dc68b8cd5b5UL, 0x240ca1cc77ac9c65UL, 0x2de92c6f592b0275UL, |
| 71 |
0x4a7484aa6ea6e483UL, 0x5cb0a9dcbd41fbd4UL, 0x76f988da831153b5UL, |
| 72 |
0x983e5152ee66dfabUL, 0xa831c66d2db43210UL, 0xb00327c898fb213fUL, |
| 73 |
0xbf597fc7beef0ee4UL, 0xc6e00bf33da88fc2UL, 0xd5a79147930aa725UL, |
| 74 |
0x06ca6351e003826fUL, 0x142929670a0e6e70UL, 0x27b70a8546d22ffcUL, |
| 75 |
0x2e1b21385c26c926UL, 0x4d2c6dfc5ac42aedUL, 0x53380d139d95b3dfUL, |
| 76 |
0x650a73548baf63deUL, 0x766a0abb3c77b2a8UL, 0x81c2c92e47edaee6UL, |
| 77 |
0x92722c851482353bUL, 0xa2bfe8a14cf10364UL, 0xa81a664bbc423001UL, |
| 78 |
0xc24b8b70d0f89791UL, 0xc76c51a30654be30UL, 0xd192e819d6ef5218UL, |
| 79 |
0xd69906245565a910UL, 0xf40e35855771202aUL, 0x106aa07032bbd1b8UL, |
| 80 |
0x19a4c116b8d2d0c8UL, 0x1e376c085141ab53UL, 0x2748774cdf8eeb99UL, |
| 81 |
0x34b0bcb5e19b48a8UL, 0x391c0cb3c5c95a63UL, 0x4ed8aa4ae3418acbUL, |
| 82 |
0x5b9cca4f7763e373UL, 0x682e6ff3d6b2b8a3UL, 0x748f82ee5defb2fcUL, |
| 83 |
0x78a5636f43172f60UL, 0x84c87814a1f0ab72UL, 0x8cc702081a6439ecUL, |
| 84 |
0x90befffa23631e28UL, 0xa4506cebde82bde9UL, 0xbef9a3f7b2c67915UL, |
| 85 |
0xc67178f2e372532bUL, 0xca273eceea26619cUL, 0xd186b8c721c0c207UL, |
| 86 |
0xeada7dd6cde0eb1eUL, 0xf57d4f7fee6ed178UL, 0x06f067aa72176fbaUL, |
| 87 |
0x0a637dc5a2c898a6UL, 0x113f9804bef90daeUL, 0x1b710b35131c471bUL, |
| 88 |
0x28db77f523047d84UL, 0x32caab7b40c72493UL, 0x3c9ebe0a15c9bebcUL, |
| 89 |
0x431d67c49c100d4cUL, 0x4cc5d4becb3e42b6UL, 0x597f299cfc657e2aUL, |
| 90 |
0x5fcb6fab3ad6faecUL, 0x6c44198c4a475817UL |
| 91 |
}; |
| 92 |
#endif |
| 93 |
|
| 94 |
#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z))) |
| 95 |
#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) |
| 96 |
#define R(x,y) ((y) >> (x)) |
| 97 |
|
| 98 |
#if defined(SHA256_NEEDED) |
| 99 |
void sha256_init(sha256_context *ctx) |
| 100 |
{ |
| 101 |
memcpy(&ctx->sha_H[0], &sha256_hashInit[0], sizeof(ctx->sha_H)); |
| 102 |
ctx->sha_blocks = 0; |
| 103 |
ctx->sha_bufCnt = 0; |
| 104 |
} |
| 105 |
|
| 106 |
#define S(x,y) (((y) >> (x)) | ((y) << (32 - (x)))) |
| 107 |
#define uSig0(x) ((S(2,(x))) ^ (S(13,(x))) ^ (S(22,(x)))) |
| 108 |
#define uSig1(x) ((S(6,(x))) ^ (S(11,(x))) ^ (S(25,(x)))) |
| 109 |
#define lSig0(x) ((S(7,(x))) ^ (S(18,(x))) ^ (R(3,(x)))) |
| 110 |
#define lSig1(x) ((S(17,(x))) ^ (S(19,(x))) ^ (R(10,(x)))) |
| 111 |
|
| 112 |
static void sha256_transform(sha256_context *ctx, unsigned char *datap) |
| 113 |
{ |
| 114 |
register int j; |
| 115 |
u_int32_t a, b, c, d, e, f, g, h; |
| 116 |
u_int32_t T1, T2, W[64], Wm2, Wm15; |
| 117 |
|
| 118 |
/* read the data, big endian byte order */ |
| 119 |
j = 0; |
| 120 |
do { |
| 121 |
W[j] = (((u_int32_t)(datap[0]))<<24) | (((u_int32_t)(datap[1]))<<16) | |
| 122 |
(((u_int32_t)(datap[2]))<<8 ) | ((u_int32_t)(datap[3])); |
| 123 |
datap += 4; |
| 124 |
} while(++j < 16); |
| 125 |
|
| 126 |
/* initialize variables a...h */ |
| 127 |
a = ctx->sha_H[0]; |
| 128 |
b = ctx->sha_H[1]; |
| 129 |
c = ctx->sha_H[2]; |
| 130 |
d = ctx->sha_H[3]; |
| 131 |
e = ctx->sha_H[4]; |
| 132 |
f = ctx->sha_H[5]; |
| 133 |
g = ctx->sha_H[6]; |
| 134 |
h = ctx->sha_H[7]; |
| 135 |
|
| 136 |
/* apply compression function */ |
| 137 |
j = 0; |
| 138 |
do { |
| 139 |
if(j >= 16) { |
| 140 |
Wm2 = W[j - 2]; |
| 141 |
Wm15 = W[j - 15]; |
| 142 |
W[j] = lSig1(Wm2) + W[j - 7] + lSig0(Wm15) + W[j - 16]; |
| 143 |
} |
| 144 |
T1 = h + uSig1(e) + Ch(e,f,g) + sha256_K[j] + W[j]; |
| 145 |
T2 = uSig0(a) + Maj(a,b,c); |
| 146 |
h = g; g = f; f = e; |
| 147 |
e = d + T1; |
| 148 |
d = c; c = b; b = a; |
| 149 |
a = T1 + T2; |
| 150 |
} while(++j < 64); |
| 151 |
|
| 152 |
/* compute intermediate hash value */ |
| 153 |
ctx->sha_H[0] += a; |
| 154 |
ctx->sha_H[1] += b; |
| 155 |
ctx->sha_H[2] += c; |
| 156 |
ctx->sha_H[3] += d; |
| 157 |
ctx->sha_H[4] += e; |
| 158 |
ctx->sha_H[5] += f; |
| 159 |
ctx->sha_H[6] += g; |
| 160 |
ctx->sha_H[7] += h; |
| 161 |
|
| 162 |
ctx->sha_blocks++; |
| 163 |
} |
| 164 |
|
| 165 |
void sha256_write(sha256_context *ctx, unsigned char *datap, size_t length) |
| 166 |
{ |
| 167 |
while(length > 0) { |
| 168 |
if(!ctx->sha_bufCnt) { |
| 169 |
while(length >= sizeof(ctx->sha_out)) { |
| 170 |
sha256_transform(ctx, datap); |
| 171 |
datap += sizeof(ctx->sha_out); |
| 172 |
length -= sizeof(ctx->sha_out); |
| 173 |
} |
| 174 |
if(!length) return; |
| 175 |
} |
| 176 |
ctx->sha_out[ctx->sha_bufCnt] = *datap++; |
| 177 |
length--; |
| 178 |
if(++ctx->sha_bufCnt == sizeof(ctx->sha_out)) { |
| 179 |
sha256_transform(ctx, &ctx->sha_out[0]); |
| 180 |
ctx->sha_bufCnt = 0; |
| 181 |
} |
| 182 |
} |
| 183 |
} |
| 184 |
|
| 185 |
void sha256_final(sha256_context *ctx) |
| 186 |
{ |
| 187 |
register int j; |
| 188 |
u_int64_t bitLength; |
| 189 |
u_int32_t i; |
| 190 |
unsigned char padByte, *datap; |
| 191 |
|
| 192 |
bitLength = (ctx->sha_blocks << 9) | (ctx->sha_bufCnt << 3); |
| 193 |
padByte = 0x80; |
| 194 |
sha256_write(ctx, &padByte, 1); |
| 195 |
|
| 196 |
/* pad extra space with zeroes */ |
| 197 |
padByte = 0; |
| 198 |
while(ctx->sha_bufCnt != 56) { |
| 199 |
sha256_write(ctx, &padByte, 1); |
| 200 |
} |
| 201 |
|
| 202 |
/* write bit length, big endian byte order */ |
| 203 |
ctx->sha_out[56] = (unsigned char)(bitLength >> 56); |
| 204 |
ctx->sha_out[57] = (unsigned char)(bitLength >> 48); |
| 205 |
ctx->sha_out[58] = (unsigned char)(bitLength >> 40); |
| 206 |
ctx->sha_out[59] = (unsigned char)(bitLength >> 32); |
| 207 |
ctx->sha_out[60] = (unsigned char)(bitLength >> 24); |
| 208 |
ctx->sha_out[61] = (unsigned char)(bitLength >> 16); |
| 209 |
ctx->sha_out[62] = (unsigned char)(bitLength >> 8); |
| 210 |
ctx->sha_out[63] = (unsigned char)(bitLength); |
| 211 |
sha256_transform(ctx, &ctx->sha_out[0]); |
| 212 |
|
| 213 |
/* return results in ctx->sha_out[0...31] */ |
| 214 |
datap = &ctx->sha_out[0]; |
| 215 |
j = 0; |
| 216 |
do { |
| 217 |
i = ctx->sha_H[j]; |
| 218 |
datap[0] = (unsigned char)(i >> 24); |
| 219 |
datap[1] = (unsigned char)(i >> 16); |
| 220 |
datap[2] = (unsigned char)(i >> 8); |
| 221 |
datap[3] = (unsigned char)(i); |
| 222 |
datap += 4; |
| 223 |
} while(++j < 8); |
| 224 |
|
| 225 |
/* clear sensitive information */ |
| 226 |
memset(&ctx->sha_out[32], 0, sizeof(sha256_context) - 32); |
| 227 |
} |
| 228 |
|
| 229 |
|
| 230 |
unsigned char * |
| 231 |
sha256_read (sha256_context * ctx) |
| 232 |
{ |
| 233 |
return ctx->sha_out; |
| 234 |
} |
| 235 |
|
| 236 |
#endif |
| 237 |
|
| 238 |
#if defined(SHA512_NEEDED) |
| 239 |
void sha512_init(sha512_context *ctx) |
| 240 |
{ |
| 241 |
memcpy(&ctx->sha_H[0], &sha512_hashInit[0], sizeof(ctx->sha_H)); |
| 242 |
ctx->sha_blocks = 0; |
| 243 |
ctx->sha_blocksMSB = 0; |
| 244 |
ctx->sha_bufCnt = 0; |
| 245 |
} |
| 246 |
#endif |
| 247 |
|
| 248 |
#if defined(SHA512_NEEDED) || defined(SHA384_NEEDED) |
| 249 |
#undef S |
| 250 |
#undef uSig0 |
| 251 |
#undef uSig1 |
| 252 |
#undef lSig0 |
| 253 |
#undef lSig1 |
| 254 |
#define S(x,y) (((y) >> (x)) | ((y) << (64 - (x)))) |
| 255 |
#define uSig0(x) ((S(28,(x))) ^ (S(34,(x))) ^ (S(39,(x)))) |
| 256 |
#define uSig1(x) ((S(14,(x))) ^ (S(18,(x))) ^ (S(41,(x)))) |
| 257 |
#define lSig0(x) ((S(1,(x))) ^ (S(8,(x))) ^ (R(7,(x)))) |
| 258 |
#define lSig1(x) ((S(19,(x))) ^ (S(61,(x))) ^ (R(6,(x)))) |
| 259 |
|
| 260 |
static void sha512_transform(sha512_context *ctx, unsigned char *datap) |
| 261 |
{ |
| 262 |
register int j; |
| 263 |
u_int64_t a, b, c, d, e, f, g, h; |
| 264 |
u_int64_t T1, T2, W[80], Wm2, Wm15; |
| 265 |
|
| 266 |
/* read the data, big endian byte order */ |
| 267 |
j = 0; |
| 268 |
do { |
| 269 |
W[j] = (((u_int64_t)(datap[0]))<<56) | (((u_int64_t)(datap[1]))<<48) | |
| 270 |
(((u_int64_t)(datap[2]))<<40) | (((u_int64_t)(datap[3]))<<32) | |
| 271 |
(((u_int64_t)(datap[4]))<<24) | (((u_int64_t)(datap[5]))<<16) | |
| 272 |
(((u_int64_t)(datap[6]))<<8 ) | ((u_int64_t)(datap[7])); |
| 273 |
datap += 8; |
| 274 |
} while(++j < 16); |
| 275 |
|
| 276 |
/* initialize variables a...h */ |
| 277 |
a = ctx->sha_H[0]; |
| 278 |
b = ctx->sha_H[1]; |
| 279 |
c = ctx->sha_H[2]; |
| 280 |
d = ctx->sha_H[3]; |
| 281 |
e = ctx->sha_H[4]; |
| 282 |
f = ctx->sha_H[5]; |
| 283 |
g = ctx->sha_H[6]; |
| 284 |
h = ctx->sha_H[7]; |
| 285 |
|
| 286 |
/* apply compression function */ |
| 287 |
j = 0; |
| 288 |
do { |
| 289 |
if(j >= 16) { |
| 290 |
Wm2 = W[j - 2]; |
| 291 |
Wm15 = W[j - 15]; |
| 292 |
W[j] = lSig1(Wm2) + W[j - 7] + lSig0(Wm15) + W[j - 16]; |
| 293 |
} |
| 294 |
T1 = h + uSig1(e) + Ch(e,f,g) + sha512_K[j] + W[j]; |
| 295 |
T2 = uSig0(a) + Maj(a,b,c); |
| 296 |
h = g; g = f; f = e; |
| 297 |
e = d + T1; |
| 298 |
d = c; c = b; b = a; |
| 299 |
a = T1 + T2; |
| 300 |
} while(++j < 80); |
| 301 |
|
| 302 |
/* compute intermediate hash value */ |
| 303 |
ctx->sha_H[0] += a; |
| 304 |
ctx->sha_H[1] += b; |
| 305 |
ctx->sha_H[2] += c; |
| 306 |
ctx->sha_H[3] += d; |
| 307 |
ctx->sha_H[4] += e; |
| 308 |
ctx->sha_H[5] += f; |
| 309 |
ctx->sha_H[6] += g; |
| 310 |
ctx->sha_H[7] += h; |
| 311 |
|
| 312 |
ctx->sha_blocks++; |
| 313 |
if(!ctx->sha_blocks) ctx->sha_blocksMSB++; |
| 314 |
} |
| 315 |
|
| 316 |
void sha512_write(sha512_context *ctx, unsigned char *datap, size_t length) |
| 317 |
{ |
| 318 |
while(length > 0) { |
| 319 |
if(!ctx->sha_bufCnt) { |
| 320 |
while(length >= sizeof(ctx->sha_out)) { |
| 321 |
sha512_transform(ctx, datap); |
| 322 |
datap += sizeof(ctx->sha_out); |
| 323 |
length -= sizeof(ctx->sha_out); |
| 324 |
} |
| 325 |
if(!length) return; |
| 326 |
} |
| 327 |
ctx->sha_out[ctx->sha_bufCnt] = *datap++; |
| 328 |
length--; |
| 329 |
if(++ctx->sha_bufCnt == sizeof(ctx->sha_out)) { |
| 330 |
sha512_transform(ctx, &ctx->sha_out[0]); |
| 331 |
ctx->sha_bufCnt = 0; |
| 332 |
} |
| 333 |
} |
| 334 |
} |
| 335 |
|
| 336 |
void sha512_final(sha512_context *ctx) |
| 337 |
{ |
| 338 |
register int j; |
| 339 |
u_int64_t bitLength, bitLengthMSB; |
| 340 |
u_int64_t i; |
| 341 |
unsigned char padByte, *datap; |
| 342 |
|
| 343 |
bitLength = (ctx->sha_blocks << 10) | (ctx->sha_bufCnt << 3); |
| 344 |
bitLengthMSB = (ctx->sha_blocksMSB << 10) | (ctx->sha_blocks >> 54); |
| 345 |
padByte = 0x80; |
| 346 |
sha512_write(ctx, &padByte, 1); |
| 347 |
|
| 348 |
/* pad extra space with zeroes */ |
| 349 |
padByte = 0; |
| 350 |
while(ctx->sha_bufCnt != 112) { |
| 351 |
sha512_write(ctx, &padByte, 1); |
| 352 |
} |
| 353 |
|
| 354 |
/* write bit length, big endian byte order */ |
| 355 |
ctx->sha_out[112] = (unsigned char)(bitLengthMSB >> 56); |
| 356 |
ctx->sha_out[113] = (unsigned char)(bitLengthMSB >> 48); |
| 357 |
ctx->sha_out[114] = (unsigned char)(bitLengthMSB >> 40); |
| 358 |
ctx->sha_out[115] = (unsigned char)(bitLengthMSB >> 32); |
| 359 |
ctx->sha_out[116] = (unsigned char)(bitLengthMSB >> 24); |
| 360 |
ctx->sha_out[117] = (unsigned char)(bitLengthMSB >> 16); |
| 361 |
ctx->sha_out[118] = (unsigned char)(bitLengthMSB >> 8); |
| 362 |
ctx->sha_out[119] = (unsigned char)(bitLengthMSB); |
| 363 |
ctx->sha_out[120] = (unsigned char)(bitLength >> 56); |
| 364 |
ctx->sha_out[121] = (unsigned char)(bitLength >> 48); |
| 365 |
ctx->sha_out[122] = (unsigned char)(bitLength >> 40); |
| 366 |
ctx->sha_out[123] = (unsigned char)(bitLength >> 32); |
| 367 |
ctx->sha_out[124] = (unsigned char)(bitLength >> 24); |
| 368 |
ctx->sha_out[125] = (unsigned char)(bitLength >> 16); |
| 369 |
ctx->sha_out[126] = (unsigned char)(bitLength >> 8); |
| 370 |
ctx->sha_out[127] = (unsigned char)(bitLength); |
| 371 |
sha512_transform(ctx, &ctx->sha_out[0]); |
| 372 |
|
| 373 |
/* return results in ctx->sha_out[0...63] */ |
| 374 |
datap = &ctx->sha_out[0]; |
| 375 |
j = 0; |
| 376 |
do { |
| 377 |
i = ctx->sha_H[j]; |
| 378 |
datap[0] = (unsigned char)(i >> 56); |
| 379 |
datap[1] = (unsigned char)(i >> 48); |
| 380 |
datap[2] = (unsigned char)(i >> 40); |
| 381 |
datap[3] = (unsigned char)(i >> 32); |
| 382 |
datap[4] = (unsigned char)(i >> 24); |
| 383 |
datap[5] = (unsigned char)(i >> 16); |
| 384 |
datap[6] = (unsigned char)(i >> 8); |
| 385 |
datap[7] = (unsigned char)(i); |
| 386 |
datap += 8; |
| 387 |
} while(++j < 8); |
| 388 |
|
| 389 |
/* clear sensitive information */ |
| 390 |
memset(&ctx->sha_out[64], 0, sizeof(sha512_context) - 64); |
| 391 |
} |
| 392 |
|
| 393 |
unsigned char * |
| 394 |
sha512_read (sha512_context * ctx) |
| 395 |
{ |
| 396 |
return ctx->sha_out; |
| 397 |
} |
| 398 |
#endif |
| 399 |
|
| 400 |
#if defined(SHA384_NEEDED) |
| 401 |
void sha384_init(sha512_context *ctx) |
| 402 |
{ |
| 403 |
memcpy(&ctx->sha_H[0], &sha384_hashInit[0], sizeof(ctx->sha_H)); |
| 404 |
ctx->sha_blocks = 0; |
| 405 |
ctx->sha_blocksMSB = 0; |
| 406 |
ctx->sha_bufCnt = 0; |
| 407 |
} |
| 408 |
|
| 409 |
|
| 410 |
#endif |
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