Annotation of embedaddon/php/ext/hash/hash_sha.c, revision 1.1
1.1 ! misho 1: /*
! 2: +----------------------------------------------------------------------+
! 3: | PHP Version 5 |
! 4: +----------------------------------------------------------------------+
! 5: | Copyright (c) 1997-2012 The PHP Group |
! 6: +----------------------------------------------------------------------+
! 7: | This source file is subject to version 3.01 of the PHP license, |
! 8: | that is bundled with this package in the file LICENSE, and is |
! 9: | available through the world-wide-web at the following url: |
! 10: | http://www.php.net/license/3_01.txt |
! 11: | If you did not receive a copy of the PHP license and are unable to |
! 12: | obtain it through the world-wide-web, please send a note to |
! 13: | license@php.net so we can mail you a copy immediately. |
! 14: +----------------------------------------------------------------------+
! 15: | Authors: Steffan Esser <sesser@php.net> |
! 16: | Sara Golemon <pollita@php.net> |
! 17: +----------------------------------------------------------------------+
! 18: */
! 19:
! 20: /* $Id: hash_sha.c 321634 2012-01-01 13:15:04Z felipe $ */
! 21:
! 22: #include "php_hash.h"
! 23: #include "php_hash_sha.h"
! 24:
! 25: static const unsigned char PADDING[128] =
! 26: {
! 27: 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 28: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 29: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 30: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 31: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 32: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 33: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
! 34: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
! 35: };
! 36:
! 37: /* {{{ SHAEncode32
! 38: Encodes input (php_hash_uint32) into output (unsigned char). Assumes len is
! 39: a multiple of 4.
! 40: */
! 41: static void SHAEncode32(unsigned char *output, php_hash_uint32 *input, unsigned int len)
! 42: {
! 43: unsigned int i, j;
! 44:
! 45: for (i = 0, j = 0; j < len; i++, j += 4) {
! 46: output[j] = (unsigned char) ((input[i] >> 24) & 0xff);
! 47: output[j + 1] = (unsigned char) ((input[i] >> 16) & 0xff);
! 48: output[j + 2] = (unsigned char) ((input[i] >> 8) & 0xff);
! 49: output[j + 3] = (unsigned char) (input[i] & 0xff);
! 50: }
! 51: }
! 52: /* }}} */
! 53:
! 54:
! 55: /* {{{ SHADecode32
! 56: Decodes input (unsigned char) into output (php_hash_uint32). Assumes len is
! 57: a multiple of 4.
! 58: */
! 59: static void SHADecode32(php_hash_uint32 *output, const unsigned char *input, unsigned int len)
! 60: {
! 61: unsigned int i, j;
! 62:
! 63: for (i = 0, j = 0; j < len; i++, j += 4)
! 64: output[i] = ((php_hash_uint32) input[j + 3]) | (((php_hash_uint32) input[j + 2]) << 8) |
! 65: (((php_hash_uint32) input[j + 1]) << 16) | (((php_hash_uint32) input[j]) << 24);
! 66: }
! 67: /* }}} */
! 68:
! 69: const php_hash_ops php_hash_sha1_ops = {
! 70: (php_hash_init_func_t) PHP_SHA1Init,
! 71: (php_hash_update_func_t) PHP_SHA1Update,
! 72: (php_hash_final_func_t) PHP_SHA1Final,
! 73: (php_hash_copy_func_t) php_hash_copy,
! 74: 20,
! 75: 64,
! 76: sizeof(PHP_SHA1_CTX)
! 77: };
! 78:
! 79: #ifdef PHP_HASH_SHA1_NOT_IN_CORE
! 80:
! 81: PHP_HASH_API void make_sha1_digest(char *sha1str, unsigned char *digest)
! 82: {
! 83: php_hash_bin2hex(sha1str, digest, 20);
! 84: sha1str[40] = '\0';
! 85: }
! 86:
! 87: /* {{{ proto string sha1(string str [, bool raw_output])
! 88: Calculate the sha1 hash of a string */
! 89: PHP_FUNCTION(sha1)
! 90: {
! 91: char *arg;
! 92: int arg_len;
! 93: zend_bool raw_output = 0;
! 94: char sha1str[41];
! 95: PHP_SHA1_CTX context;
! 96: unsigned char digest[20];
! 97:
! 98: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
! 99: return;
! 100: }
! 101:
! 102: sha1str[0] = '\0';
! 103: PHP_SHA1Init(&context);
! 104: PHP_SHA1Update(&context, arg, arg_len);
! 105: PHP_SHA1Final(digest, &context);
! 106: if (raw_output) {
! 107: RETURN_STRINGL(digest, 20, 1);
! 108: } else {
! 109: make_sha1_digest(sha1str, digest);
! 110: RETVAL_STRING(sha1str, 1);
! 111: }
! 112:
! 113: }
! 114:
! 115: /* }}} */
! 116:
! 117: /* {{{ proto string sha1_file(string filename [, bool raw_output])
! 118: Calculate the sha1 hash of given filename */
! 119: PHP_FUNCTION(sha1_file)
! 120: {
! 121: char *arg;
! 122: int arg_len;
! 123: zend_bool raw_output = 0;
! 124: char sha1str[41];
! 125: unsigned char buf[1024];
! 126: unsigned char digest[20];
! 127: PHP_SHA1_CTX context;
! 128: int n;
! 129: php_stream *stream;
! 130:
! 131: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
! 132: return;
! 133: }
! 134:
! 135: stream = php_stream_open_wrapper(arg, "rb", REPORT_ERRORS | ENFORCE_SAFE_MODE, NULL);
! 136: if (!stream) {
! 137: RETURN_FALSE;
! 138: }
! 139:
! 140: PHP_SHA1Init(&context);
! 141:
! 142: while ((n = php_stream_read(stream, buf, sizeof(buf))) > 0) {
! 143: PHP_SHA1Update(&context, buf, n);
! 144: }
! 145:
! 146: PHP_SHA1Final(digest, &context);
! 147:
! 148: php_stream_close(stream);
! 149:
! 150: if (n<0) {
! 151: RETURN_FALSE;
! 152: }
! 153:
! 154: if (raw_output) {
! 155: RETURN_STRINGL(digest, 20, 1);
! 156: } else {
! 157: make_sha1_digest(sha1str, digest);
! 158: RETVAL_STRING(sha1str, 1);
! 159: }
! 160: }
! 161: /* }}} */
! 162:
! 163: /* F, G, H and I are basic SHA1 functions.
! 164: */
! 165: #define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
! 166: #define G(x, y, z) ((x) ^ (y) ^ (z))
! 167: #define H(x, y, z) (((x) & (y)) | ((z) & ((x) | (y))))
! 168: #define I(x, y, z) ((x) ^ (y) ^ (z))
! 169:
! 170: /* ROTATE_LEFT rotates x left n bits.
! 171: */
! 172: #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
! 173:
! 174: /* W[i]
! 175: */
! 176: #define W(i) ( tmp=x[(i-3)&15]^x[(i-8)&15]^x[(i-14)&15]^x[i&15], \
! 177: (x[i&15]=ROTATE_LEFT(tmp, 1)) )
! 178:
! 179: /* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
! 180: */
! 181: #define FF(a, b, c, d, e, w) { \
! 182: (e) += F ((b), (c), (d)) + (w) + (php_hash_uint32)(0x5A827999); \
! 183: (e) += ROTATE_LEFT ((a), 5); \
! 184: (b) = ROTATE_LEFT((b), 30); \
! 185: }
! 186: #define GG(a, b, c, d, e, w) { \
! 187: (e) += G ((b), (c), (d)) + (w) + (php_hash_uint32)(0x6ED9EBA1); \
! 188: (e) += ROTATE_LEFT ((a), 5); \
! 189: (b) = ROTATE_LEFT((b), 30); \
! 190: }
! 191: #define HH(a, b, c, d, e, w) { \
! 192: (e) += H ((b), (c), (d)) + (w) + (php_hash_uint32)(0x8F1BBCDC); \
! 193: (e) += ROTATE_LEFT ((a), 5); \
! 194: (b) = ROTATE_LEFT((b), 30); \
! 195: }
! 196: #define II(a, b, c, d, e, w) { \
! 197: (e) += I ((b), (c), (d)) + (w) + (php_hash_uint32)(0xCA62C1D6); \
! 198: (e) += ROTATE_LEFT ((a), 5); \
! 199: (b) = ROTATE_LEFT((b), 30); \
! 200: }
! 201:
! 202:
! 203: /* {{{ PHP_SHA1Init
! 204: * SHA1 initialization. Begins an SHA1 operation, writing a new context.
! 205: */
! 206: PHP_HASH_API void PHP_SHA1Init(PHP_SHA1_CTX * context)
! 207: {
! 208: context->count[0] = context->count[1] = 0;
! 209: /* Load magic initialization constants.
! 210: */
! 211: context->state[0] = 0x67452301;
! 212: context->state[1] = 0xefcdab89;
! 213: context->state[2] = 0x98badcfe;
! 214: context->state[3] = 0x10325476;
! 215: context->state[4] = 0xc3d2e1f0;
! 216: }
! 217: /* }}} */
! 218:
! 219: /* {{{ SHA1Transform
! 220: * SHA1 basic transformation. Transforms state based on block.
! 221: */
! 222: static void SHA1Transform(php_hash_uint32 state[5], const unsigned char block[64])
! 223: {
! 224: php_hash_uint32 a = state[0], b = state[1], c = state[2];
! 225: php_hash_uint32 d = state[3], e = state[4], x[16], tmp;
! 226:
! 227: SHADecode32(x, block, 64);
! 228:
! 229: /* Round 1 */
! 230: FF(a, b, c, d, e, x[0]); /* 1 */
! 231: FF(e, a, b, c, d, x[1]); /* 2 */
! 232: FF(d, e, a, b, c, x[2]); /* 3 */
! 233: FF(c, d, e, a, b, x[3]); /* 4 */
! 234: FF(b, c, d, e, a, x[4]); /* 5 */
! 235: FF(a, b, c, d, e, x[5]); /* 6 */
! 236: FF(e, a, b, c, d, x[6]); /* 7 */
! 237: FF(d, e, a, b, c, x[7]); /* 8 */
! 238: FF(c, d, e, a, b, x[8]); /* 9 */
! 239: FF(b, c, d, e, a, x[9]); /* 10 */
! 240: FF(a, b, c, d, e, x[10]); /* 11 */
! 241: FF(e, a, b, c, d, x[11]); /* 12 */
! 242: FF(d, e, a, b, c, x[12]); /* 13 */
! 243: FF(c, d, e, a, b, x[13]); /* 14 */
! 244: FF(b, c, d, e, a, x[14]); /* 15 */
! 245: FF(a, b, c, d, e, x[15]); /* 16 */
! 246: FF(e, a, b, c, d, W(16)); /* 17 */
! 247: FF(d, e, a, b, c, W(17)); /* 18 */
! 248: FF(c, d, e, a, b, W(18)); /* 19 */
! 249: FF(b, c, d, e, a, W(19)); /* 20 */
! 250:
! 251: /* Round 2 */
! 252: GG(a, b, c, d, e, W(20)); /* 21 */
! 253: GG(e, a, b, c, d, W(21)); /* 22 */
! 254: GG(d, e, a, b, c, W(22)); /* 23 */
! 255: GG(c, d, e, a, b, W(23)); /* 24 */
! 256: GG(b, c, d, e, a, W(24)); /* 25 */
! 257: GG(a, b, c, d, e, W(25)); /* 26 */
! 258: GG(e, a, b, c, d, W(26)); /* 27 */
! 259: GG(d, e, a, b, c, W(27)); /* 28 */
! 260: GG(c, d, e, a, b, W(28)); /* 29 */
! 261: GG(b, c, d, e, a, W(29)); /* 30 */
! 262: GG(a, b, c, d, e, W(30)); /* 31 */
! 263: GG(e, a, b, c, d, W(31)); /* 32 */
! 264: GG(d, e, a, b, c, W(32)); /* 33 */
! 265: GG(c, d, e, a, b, W(33)); /* 34 */
! 266: GG(b, c, d, e, a, W(34)); /* 35 */
! 267: GG(a, b, c, d, e, W(35)); /* 36 */
! 268: GG(e, a, b, c, d, W(36)); /* 37 */
! 269: GG(d, e, a, b, c, W(37)); /* 38 */
! 270: GG(c, d, e, a, b, W(38)); /* 39 */
! 271: GG(b, c, d, e, a, W(39)); /* 40 */
! 272:
! 273: /* Round 3 */
! 274: HH(a, b, c, d, e, W(40)); /* 41 */
! 275: HH(e, a, b, c, d, W(41)); /* 42 */
! 276: HH(d, e, a, b, c, W(42)); /* 43 */
! 277: HH(c, d, e, a, b, W(43)); /* 44 */
! 278: HH(b, c, d, e, a, W(44)); /* 45 */
! 279: HH(a, b, c, d, e, W(45)); /* 46 */
! 280: HH(e, a, b, c, d, W(46)); /* 47 */
! 281: HH(d, e, a, b, c, W(47)); /* 48 */
! 282: HH(c, d, e, a, b, W(48)); /* 49 */
! 283: HH(b, c, d, e, a, W(49)); /* 50 */
! 284: HH(a, b, c, d, e, W(50)); /* 51 */
! 285: HH(e, a, b, c, d, W(51)); /* 52 */
! 286: HH(d, e, a, b, c, W(52)); /* 53 */
! 287: HH(c, d, e, a, b, W(53)); /* 54 */
! 288: HH(b, c, d, e, a, W(54)); /* 55 */
! 289: HH(a, b, c, d, e, W(55)); /* 56 */
! 290: HH(e, a, b, c, d, W(56)); /* 57 */
! 291: HH(d, e, a, b, c, W(57)); /* 58 */
! 292: HH(c, d, e, a, b, W(58)); /* 59 */
! 293: HH(b, c, d, e, a, W(59)); /* 60 */
! 294:
! 295: /* Round 4 */
! 296: II(a, b, c, d, e, W(60)); /* 61 */
! 297: II(e, a, b, c, d, W(61)); /* 62 */
! 298: II(d, e, a, b, c, W(62)); /* 63 */
! 299: II(c, d, e, a, b, W(63)); /* 64 */
! 300: II(b, c, d, e, a, W(64)); /* 65 */
! 301: II(a, b, c, d, e, W(65)); /* 66 */
! 302: II(e, a, b, c, d, W(66)); /* 67 */
! 303: II(d, e, a, b, c, W(67)); /* 68 */
! 304: II(c, d, e, a, b, W(68)); /* 69 */
! 305: II(b, c, d, e, a, W(69)); /* 70 */
! 306: II(a, b, c, d, e, W(70)); /* 71 */
! 307: II(e, a, b, c, d, W(71)); /* 72 */
! 308: II(d, e, a, b, c, W(72)); /* 73 */
! 309: II(c, d, e, a, b, W(73)); /* 74 */
! 310: II(b, c, d, e, a, W(74)); /* 75 */
! 311: II(a, b, c, d, e, W(75)); /* 76 */
! 312: II(e, a, b, c, d, W(76)); /* 77 */
! 313: II(d, e, a, b, c, W(77)); /* 78 */
! 314: II(c, d, e, a, b, W(78)); /* 79 */
! 315: II(b, c, d, e, a, W(79)); /* 80 */
! 316:
! 317: state[0] += a;
! 318: state[1] += b;
! 319: state[2] += c;
! 320: state[3] += d;
! 321: state[4] += e;
! 322:
! 323: /* Zeroize sensitive information. */
! 324: memset((unsigned char*) x, 0, sizeof(x));
! 325: }
! 326: /* }}} */
! 327:
! 328: /* {{{ PHP_SHA1Update
! 329: SHA1 block update operation. Continues an SHA1 message-digest
! 330: operation, processing another message block, and updating the
! 331: context.
! 332: */
! 333: PHP_HASH_API void PHP_SHA1Update(PHP_SHA1_CTX * context, const unsigned char *input,
! 334: unsigned int inputLen)
! 335: {
! 336: unsigned int i, index, partLen;
! 337:
! 338: /* Compute number of bytes mod 64 */
! 339: index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
! 340:
! 341: /* Update number of bits */
! 342: if ((context->count[0] += ((php_hash_uint32) inputLen << 3))
! 343: < ((php_hash_uint32) inputLen << 3))
! 344: context->count[1]++;
! 345: context->count[1] += ((php_hash_uint32) inputLen >> 29);
! 346:
! 347: partLen = 64 - index;
! 348:
! 349: /* Transform as many times as possible.
! 350: */
! 351: if (inputLen >= partLen) {
! 352: memcpy
! 353: ((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
! 354: SHA1Transform(context->state, context->buffer);
! 355:
! 356: for (i = partLen; i + 63 < inputLen; i += 64)
! 357: SHA1Transform(context->state, &input[i]);
! 358:
! 359: index = 0;
! 360: } else
! 361: i = 0;
! 362:
! 363: /* Buffer remaining input */
! 364: memcpy
! 365: ((unsigned char*) & context->buffer[index], (unsigned char*) & input[i],
! 366: inputLen - i);
! 367: }
! 368: /* }}} */
! 369:
! 370: /* {{{ PHP_SHA1Final
! 371: SHA1 finalization. Ends an SHA1 message-digest operation, writing the
! 372: the message digest and zeroizing the context.
! 373: */
! 374: PHP_HASH_API void PHP_SHA1Final(unsigned char digest[20], PHP_SHA1_CTX * context)
! 375: {
! 376: unsigned char bits[8];
! 377: unsigned int index, padLen;
! 378:
! 379: /* Save number of bits */
! 380: bits[7] = context->count[0] & 0xFF;
! 381: bits[6] = (context->count[0] >> 8) & 0xFF;
! 382: bits[5] = (context->count[0] >> 16) & 0xFF;
! 383: bits[4] = (context->count[0] >> 24) & 0xFF;
! 384: bits[3] = context->count[1] & 0xFF;
! 385: bits[2] = (context->count[1] >> 8) & 0xFF;
! 386: bits[1] = (context->count[1] >> 16) & 0xFF;
! 387: bits[0] = (context->count[1] >> 24) & 0xFF;
! 388:
! 389: /* Pad out to 56 mod 64.
! 390: */
! 391: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
! 392: padLen = (index < 56) ? (56 - index) : (120 - index);
! 393: PHP_SHA1Update(context, PADDING, padLen);
! 394:
! 395: /* Append length (before padding) */
! 396: PHP_SHA1Update(context, bits, 8);
! 397:
! 398: /* Store state in digest */
! 399: SHAEncode32(digest, context->state, 20);
! 400:
! 401: /* Zeroize sensitive information.
! 402: */
! 403: memset((unsigned char*) context, 0, sizeof(*context));
! 404: }
! 405: /* }}} */
! 406:
! 407: #endif /* PHP_HASH_SHA1_NOT_IN_CORE */
! 408:
! 409: /* sha224/sha256 */
! 410:
! 411: const php_hash_ops php_hash_sha256_ops = {
! 412: (php_hash_init_func_t) PHP_SHA256Init,
! 413: (php_hash_update_func_t) PHP_SHA256Update,
! 414: (php_hash_final_func_t) PHP_SHA256Final,
! 415: (php_hash_copy_func_t) php_hash_copy,
! 416: 32,
! 417: 64,
! 418: sizeof(PHP_SHA256_CTX)
! 419: };
! 420:
! 421: const php_hash_ops php_hash_sha224_ops = {
! 422: (php_hash_init_func_t) PHP_SHA224Init,
! 423: (php_hash_update_func_t) PHP_SHA224Update,
! 424: (php_hash_final_func_t) PHP_SHA224Final,
! 425: (php_hash_copy_func_t) php_hash_copy,
! 426: 28,
! 427: 64,
! 428: sizeof(PHP_SHA224_CTX)
! 429: };
! 430:
! 431: #define ROTR32(b,x) ((x >> b) | (x << (32 - b)))
! 432: #define ROTR64(b,x) ((x >> b) | (x << (64 - b)))
! 433: #define SHR(b, x) (x >> b)
! 434:
! 435: /* Ch */
! 436: #define SHA256_F0(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
! 437: /* Maj */
! 438: #define SHA256_F1(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
! 439: /* SUM0 */
! 440: #define SHA256_F2(x) (ROTR32( 2,(x)) ^ ROTR32(13,(x)) ^ ROTR32(22,(x)))
! 441: /* SUM1 */
! 442: #define SHA256_F3(x) (ROTR32( 6,(x)) ^ ROTR32(11,(x)) ^ ROTR32(25,(x)))
! 443: /* OM0 */
! 444: #define SHA256_F4(x) (ROTR32( 7,(x)) ^ ROTR32(18,(x)) ^ SHR( 3,(x)))
! 445: /* OM1 */
! 446: #define SHA256_F5(x) (ROTR32(17,(x)) ^ ROTR32(19,(x)) ^ SHR(10,(x)))
! 447:
! 448: static const php_hash_uint32 SHA256_K[64] = {
! 449: 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
! 450: 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
! 451: 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
! 452: 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
! 453: 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
! 454: 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
! 455: 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
! 456: 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 };
! 457:
! 458: /* {{{ PHP_SHA256Init
! 459: * SHA256 initialization. Begins an SHA256 operation, writing a new context.
! 460: */
! 461: PHP_HASH_API void PHP_SHA256Init(PHP_SHA256_CTX * context)
! 462: {
! 463: context->count[0] = context->count[1] = 0;
! 464: /* Load magic initialization constants.
! 465: */
! 466: context->state[0] = 0x6a09e667;
! 467: context->state[1] = 0xbb67ae85;
! 468: context->state[2] = 0x3c6ef372;
! 469: context->state[3] = 0xa54ff53a;
! 470: context->state[4] = 0x510e527f;
! 471: context->state[5] = 0x9b05688c;
! 472: context->state[6] = 0x1f83d9ab;
! 473: context->state[7] = 0x5be0cd19;
! 474: }
! 475: /* }}} */
! 476:
! 477: /* {{{ SHA256Transform
! 478: * SHA256 basic transformation. Transforms state based on block.
! 479: */
! 480: static void SHA256Transform(php_hash_uint32 state[8], const unsigned char block[64])
! 481: {
! 482: php_hash_uint32 a = state[0], b = state[1], c = state[2], d = state[3];
! 483: php_hash_uint32 e = state[4], f = state[5], g = state[6], h = state[7];
! 484: php_hash_uint32 x[16], T1, T2, W[64];
! 485: int i;
! 486:
! 487: SHADecode32(x, block, 64);
! 488:
! 489: /* Schedule */
! 490: for(i = 0; i < 16; i++) {
! 491: W[i] = x[i];
! 492: }
! 493: for(i = 16; i < 64; i++) {
! 494: W[i] = SHA256_F5(W[i-2]) + W[i-7] + SHA256_F4(W[i-15]) + W[i-16];
! 495: }
! 496:
! 497: for (i = 0; i < 64; i++) {
! 498: T1 = h + SHA256_F3(e) + SHA256_F0(e,f,g) + SHA256_K[i] + W[i];
! 499: T2 = SHA256_F2(a) + SHA256_F1(a,b,c);
! 500: h = g; g = f; f = e; e = d + T1;
! 501: d = c; c = b; b = a; a = T1 + T2;
! 502: }
! 503:
! 504: state[0] += a;
! 505: state[1] += b;
! 506: state[2] += c;
! 507: state[3] += d;
! 508: state[4] += e;
! 509: state[5] += f;
! 510: state[6] += g;
! 511: state[7] += h;
! 512:
! 513: /* Zeroize sensitive information. */
! 514: memset((unsigned char*) x, 0, sizeof(x));
! 515: }
! 516: /* }}} */
! 517:
! 518: /* {{{ PHP_SHA224Init
! 519: * SHA224 initialization. Begins an SHA224 operation, writing a new context.
! 520: */
! 521: PHP_HASH_API void PHP_SHA224Init(PHP_SHA224_CTX * context)
! 522: {
! 523: context->count[0] = context->count[1] = 0;
! 524: /* Load magic initialization constants.
! 525: */
! 526: context->state[0] = 0xc1059ed8;
! 527: context->state[1] = 0x367cd507;
! 528: context->state[2] = 0x3070dd17;
! 529: context->state[3] = 0xf70e5939;
! 530: context->state[4] = 0xffc00b31;
! 531: context->state[5] = 0x68581511;
! 532: context->state[6] = 0x64f98fa7;
! 533: context->state[7] = 0xbefa4fa4;
! 534: }
! 535: /* }}} */
! 536:
! 537: /* {{{ PHP_SHA224Update
! 538: SHA224 block update operation. Continues an SHA224 message-digest
! 539: operation, processing another message block, and updating the
! 540: context.
! 541: */
! 542: PHP_HASH_API void PHP_SHA224Update(PHP_SHA224_CTX * context, const unsigned char *input, unsigned int inputLen)
! 543: {
! 544: unsigned int i, index, partLen;
! 545:
! 546: /* Compute number of bytes mod 64 */
! 547: index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
! 548:
! 549: /* Update number of bits */
! 550: if ((context->count[0] += ((php_hash_uint32) inputLen << 3)) < ((php_hash_uint32) inputLen << 3)) {
! 551: context->count[1]++;
! 552: }
! 553: context->count[1] += ((php_hash_uint32) inputLen >> 29);
! 554:
! 555: partLen = 64 - index;
! 556:
! 557: /* Transform as many times as possible.
! 558: */
! 559: if (inputLen >= partLen) {
! 560: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
! 561: SHA256Transform(context->state, context->buffer);
! 562:
! 563: for (i = partLen; i + 63 < inputLen; i += 64) {
! 564: SHA256Transform(context->state, &input[i]);
! 565: }
! 566:
! 567: index = 0;
! 568: } else {
! 569: i = 0;
! 570: }
! 571:
! 572: /* Buffer remaining input */
! 573: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
! 574: }
! 575: /* }}} */
! 576:
! 577: /* {{{ PHP_SHA224Final
! 578: SHA224 finalization. Ends an SHA224 message-digest operation, writing the
! 579: the message digest and zeroizing the context.
! 580: */
! 581: PHP_HASH_API void PHP_SHA224Final(unsigned char digest[28], PHP_SHA224_CTX * context)
! 582: {
! 583: unsigned char bits[8];
! 584: unsigned int index, padLen;
! 585:
! 586: /* Save number of bits */
! 587: bits[7] = (unsigned char) (context->count[0] & 0xFF);
! 588: bits[6] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
! 589: bits[5] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
! 590: bits[4] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
! 591: bits[3] = (unsigned char) (context->count[1] & 0xFF);
! 592: bits[2] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
! 593: bits[1] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
! 594: bits[0] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
! 595:
! 596: /* Pad out to 56 mod 64.
! 597: */
! 598: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
! 599: padLen = (index < 56) ? (56 - index) : (120 - index);
! 600: PHP_SHA224Update(context, PADDING, padLen);
! 601:
! 602: /* Append length (before padding) */
! 603: PHP_SHA224Update(context, bits, 8);
! 604:
! 605: /* Store state in digest */
! 606: SHAEncode32(digest, context->state, 28);
! 607:
! 608: /* Zeroize sensitive information.
! 609: */
! 610: memset((unsigned char*) context, 0, sizeof(*context));
! 611: }
! 612: /* }}} */
! 613:
! 614: /* {{{ PHP_SHA256Update
! 615: SHA256 block update operation. Continues an SHA256 message-digest
! 616: operation, processing another message block, and updating the
! 617: context.
! 618: */
! 619: PHP_HASH_API void PHP_SHA256Update(PHP_SHA256_CTX * context, const unsigned char *input, unsigned int inputLen)
! 620: {
! 621: unsigned int i, index, partLen;
! 622:
! 623: /* Compute number of bytes mod 64 */
! 624: index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
! 625:
! 626: /* Update number of bits */
! 627: if ((context->count[0] += ((php_hash_uint32) inputLen << 3)) < ((php_hash_uint32) inputLen << 3)) {
! 628: context->count[1]++;
! 629: }
! 630: context->count[1] += ((php_hash_uint32) inputLen >> 29);
! 631:
! 632: partLen = 64 - index;
! 633:
! 634: /* Transform as many times as possible.
! 635: */
! 636: if (inputLen >= partLen) {
! 637: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
! 638: SHA256Transform(context->state, context->buffer);
! 639:
! 640: for (i = partLen; i + 63 < inputLen; i += 64) {
! 641: SHA256Transform(context->state, &input[i]);
! 642: }
! 643:
! 644: index = 0;
! 645: } else {
! 646: i = 0;
! 647: }
! 648:
! 649: /* Buffer remaining input */
! 650: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
! 651: }
! 652: /* }}} */
! 653:
! 654: /* {{{ PHP_SHA256Final
! 655: SHA256 finalization. Ends an SHA256 message-digest operation, writing the
! 656: the message digest and zeroizing the context.
! 657: */
! 658: PHP_HASH_API void PHP_SHA256Final(unsigned char digest[32], PHP_SHA256_CTX * context)
! 659: {
! 660: unsigned char bits[8];
! 661: unsigned int index, padLen;
! 662:
! 663: /* Save number of bits */
! 664: bits[7] = (unsigned char) (context->count[0] & 0xFF);
! 665: bits[6] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
! 666: bits[5] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
! 667: bits[4] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
! 668: bits[3] = (unsigned char) (context->count[1] & 0xFF);
! 669: bits[2] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
! 670: bits[1] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
! 671: bits[0] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
! 672:
! 673: /* Pad out to 56 mod 64.
! 674: */
! 675: index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
! 676: padLen = (index < 56) ? (56 - index) : (120 - index);
! 677: PHP_SHA256Update(context, PADDING, padLen);
! 678:
! 679: /* Append length (before padding) */
! 680: PHP_SHA256Update(context, bits, 8);
! 681:
! 682: /* Store state in digest */
! 683: SHAEncode32(digest, context->state, 32);
! 684:
! 685: /* Zeroize sensitive information.
! 686: */
! 687: memset((unsigned char*) context, 0, sizeof(*context));
! 688: }
! 689: /* }}} */
! 690:
! 691: /* sha384/sha512 */
! 692:
! 693: /* Ch */
! 694: #define SHA512_F0(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
! 695: /* Maj */
! 696: #define SHA512_F1(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
! 697: /* SUM0 */
! 698: #define SHA512_F2(x) (ROTR64(28, x) ^ ROTR64(34, x) ^ ROTR64(39, x))
! 699: /* SUM1 */
! 700: #define SHA512_F3(x) (ROTR64(14, x) ^ ROTR64(18, x) ^ ROTR64(41, x))
! 701: /* OM0 */
! 702: #define SHA512_F4(x) (ROTR64( 1, x) ^ ROTR64( 8, x) ^ SHR(7, x))
! 703: /* OM1 */
! 704: #define SHA512_F5(x) (ROTR64(19, x) ^ ROTR64(61, x) ^ SHR(6, x))
! 705:
! 706: static const php_hash_uint64 SHA512_K[128] = {
! 707: L64(0x428a2f98d728ae22), L64(0x7137449123ef65cd), L64(0xb5c0fbcfec4d3b2f), L64(0xe9b5dba58189dbbc),
! 708: L64(0x3956c25bf348b538), L64(0x59f111f1b605d019), L64(0x923f82a4af194f9b), L64(0xab1c5ed5da6d8118),
! 709: L64(0xd807aa98a3030242), L64(0x12835b0145706fbe), L64(0x243185be4ee4b28c), L64(0x550c7dc3d5ffb4e2),
! 710: L64(0x72be5d74f27b896f), L64(0x80deb1fe3b1696b1), L64(0x9bdc06a725c71235), L64(0xc19bf174cf692694),
! 711: L64(0xe49b69c19ef14ad2), L64(0xefbe4786384f25e3), L64(0x0fc19dc68b8cd5b5), L64(0x240ca1cc77ac9c65),
! 712: L64(0x2de92c6f592b0275), L64(0x4a7484aa6ea6e483), L64(0x5cb0a9dcbd41fbd4), L64(0x76f988da831153b5),
! 713: L64(0x983e5152ee66dfab), L64(0xa831c66d2db43210), L64(0xb00327c898fb213f), L64(0xbf597fc7beef0ee4),
! 714: L64(0xc6e00bf33da88fc2), L64(0xd5a79147930aa725), L64(0x06ca6351e003826f), L64(0x142929670a0e6e70),
! 715: L64(0x27b70a8546d22ffc), L64(0x2e1b21385c26c926), L64(0x4d2c6dfc5ac42aed), L64(0x53380d139d95b3df),
! 716: L64(0x650a73548baf63de), L64(0x766a0abb3c77b2a8), L64(0x81c2c92e47edaee6), L64(0x92722c851482353b),
! 717: L64(0xa2bfe8a14cf10364), L64(0xa81a664bbc423001), L64(0xc24b8b70d0f89791), L64(0xc76c51a30654be30),
! 718: L64(0xd192e819d6ef5218), L64(0xd69906245565a910), L64(0xf40e35855771202a), L64(0x106aa07032bbd1b8),
! 719: L64(0x19a4c116b8d2d0c8), L64(0x1e376c085141ab53), L64(0x2748774cdf8eeb99), L64(0x34b0bcb5e19b48a8),
! 720: L64(0x391c0cb3c5c95a63), L64(0x4ed8aa4ae3418acb), L64(0x5b9cca4f7763e373), L64(0x682e6ff3d6b2b8a3),
! 721: L64(0x748f82ee5defb2fc), L64(0x78a5636f43172f60), L64(0x84c87814a1f0ab72), L64(0x8cc702081a6439ec),
! 722: L64(0x90befffa23631e28), L64(0xa4506cebde82bde9), L64(0xbef9a3f7b2c67915), L64(0xc67178f2e372532b),
! 723: L64(0xca273eceea26619c), L64(0xd186b8c721c0c207), L64(0xeada7dd6cde0eb1e), L64(0xf57d4f7fee6ed178),
! 724: L64(0x06f067aa72176fba), L64(0x0a637dc5a2c898a6), L64(0x113f9804bef90dae), L64(0x1b710b35131c471b),
! 725: L64(0x28db77f523047d84), L64(0x32caab7b40c72493), L64(0x3c9ebe0a15c9bebc), L64(0x431d67c49c100d4c),
! 726: L64(0x4cc5d4becb3e42b6), L64(0x597f299cfc657e2a), L64(0x5fcb6fab3ad6faec), L64(0x6c44198c4a475817) };
! 727:
! 728: /* {{{ SHAEncode64
! 729: Encodes input (php_hash_uint64) into output (unsigned char). Assumes len is
! 730: a multiple of 8.
! 731: */
! 732: static void SHAEncode64(unsigned char *output, php_hash_uint64 *input, unsigned int len)
! 733: {
! 734: unsigned int i, j;
! 735:
! 736: for (i = 0, j = 0; j < len; i++, j += 8) {
! 737: output[j] = (unsigned char) ((input[i] >> 56) & 0xff);
! 738: output[j + 1] = (unsigned char) ((input[i] >> 48) & 0xff);
! 739: output[j + 2] = (unsigned char) ((input[i] >> 40) & 0xff);
! 740: output[j + 3] = (unsigned char) ((input[i] >> 32) & 0xff);
! 741: output[j + 4] = (unsigned char) ((input[i] >> 24) & 0xff);
! 742: output[j + 5] = (unsigned char) ((input[i] >> 16) & 0xff);
! 743: output[j + 6] = (unsigned char) ((input[i] >> 8) & 0xff);
! 744: output[j + 7] = (unsigned char) (input[i] & 0xff);
! 745: }
! 746: }
! 747: /* }}} */
! 748:
! 749:
! 750: /* {{{ SHADecode64
! 751: Decodes input (unsigned char) into output (php_hash_uint64). Assumes len is
! 752: a multiple of 8.
! 753: */
! 754: static void SHADecode64(php_hash_uint64 *output, const unsigned char *input, unsigned int len)
! 755: {
! 756: unsigned int i, j;
! 757:
! 758: for (i = 0, j = 0; j < len; i++, j += 8)
! 759: output[i] =
! 760: ((php_hash_uint64) input[j + 7]) | (((php_hash_uint64) input[j + 6]) << 8) |
! 761: (((php_hash_uint64) input[j + 5]) << 16) | (((php_hash_uint64) input[j + 4]) << 24) |
! 762: (((php_hash_uint64) input[j + 3]) << 32) | (((php_hash_uint64) input[j + 2]) << 40) |
! 763: (((php_hash_uint64) input[j + 1]) << 48) | (((php_hash_uint64) input[j]) << 56);
! 764: }
! 765: /* }}} */
! 766:
! 767: /* {{{ PHP_SHA384Init
! 768: * SHA384 initialization. Begins an SHA384 operation, writing a new context.
! 769: */
! 770: PHP_HASH_API void PHP_SHA384Init(PHP_SHA384_CTX * context)
! 771: {
! 772: context->count[0] = context->count[1] = 0;
! 773: /* Load magic initialization constants.
! 774: */
! 775: context->state[0] = L64(0xcbbb9d5dc1059ed8);
! 776: context->state[1] = L64(0x629a292a367cd507);
! 777: context->state[2] = L64(0x9159015a3070dd17);
! 778: context->state[3] = L64(0x152fecd8f70e5939);
! 779: context->state[4] = L64(0x67332667ffc00b31);
! 780: context->state[5] = L64(0x8eb44a8768581511);
! 781: context->state[6] = L64(0xdb0c2e0d64f98fa7);
! 782: context->state[7] = L64(0x47b5481dbefa4fa4);
! 783: }
! 784: /* }}} */
! 785:
! 786: /* {{{ SHA512Transform
! 787: * SHA512 basic transformation. Transforms state based on block.
! 788: * SHA384 uses the exact same algorithm
! 789: */
! 790: static void SHA512Transform(php_hash_uint64 state[8], const unsigned char block[128])
! 791: {
! 792: php_hash_uint64 a = state[0], b = state[1], c = state[2], d = state[3];
! 793: php_hash_uint64 e = state[4], f = state[5], g = state[6], h = state[7];
! 794: php_hash_uint64 x[16], T1, T2, W[80];
! 795: int i;
! 796:
! 797: SHADecode64(x, block, 128);
! 798:
! 799: /* Schedule */
! 800: for(i = 0; i < 16; i++) {
! 801: W[i] = x[i];
! 802: }
! 803: for(i = 16; i < 80; i++) {
! 804: W[i] = SHA512_F5(W[i-2]) + W[i-7] + SHA512_F4(W[i-15]) + W[i-16];
! 805: }
! 806:
! 807: for (i = 0; i < 80; i++) {
! 808: T1 = h + SHA512_F3(e) + SHA512_F0(e,f,g) + SHA512_K[i] + W[i];
! 809: T2 = SHA512_F2(a) + SHA512_F1(a,b,c);
! 810: h = g; g = f; f = e; e = d + T1;
! 811: d = c; c = b; b = a; a = T1 + T2;
! 812: }
! 813:
! 814: state[0] += a;
! 815: state[1] += b;
! 816: state[2] += c;
! 817: state[3] += d;
! 818: state[4] += e;
! 819: state[5] += f;
! 820: state[6] += g;
! 821: state[7] += h;
! 822:
! 823: /* Zeroize sensitive information. */
! 824: memset((unsigned char*) x, 0, sizeof(x));
! 825: }
! 826: /* }}} */
! 827:
! 828: /* {{{ PHP_SHA384Update
! 829: SHA384 block update operation. Continues an SHA384 message-digest
! 830: operation, processing another message block, and updating the
! 831: context.
! 832: */
! 833: PHP_HASH_API void PHP_SHA384Update(PHP_SHA384_CTX * context, const unsigned char *input, unsigned int inputLen)
! 834: {
! 835: unsigned int i, index, partLen;
! 836:
! 837: /* Compute number of bytes mod 128 */
! 838: index = (unsigned int) ((context->count[0] >> 3) & 0x7F);
! 839:
! 840: /* Update number of bits */
! 841: if ((context->count[0] += ((php_hash_uint64) inputLen << 3)) < ((php_hash_uint64) inputLen << 3)) {
! 842: context->count[1]++;
! 843: }
! 844: context->count[1] += ((php_hash_uint64) inputLen >> 61);
! 845:
! 846: partLen = 128 - index;
! 847:
! 848: /* Transform as many times as possible.
! 849: */
! 850: if (inputLen >= partLen) {
! 851: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
! 852: SHA512Transform(context->state, context->buffer);
! 853:
! 854: for (i = partLen; i + 127 < inputLen; i += 128) {
! 855: SHA512Transform(context->state, &input[i]);
! 856: }
! 857:
! 858: index = 0;
! 859: } else {
! 860: i = 0;
! 861: }
! 862:
! 863: /* Buffer remaining input */
! 864: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
! 865: }
! 866: /* }}} */
! 867:
! 868: /* {{{ PHP_SHA384Final
! 869: SHA384 finalization. Ends an SHA384 message-digest operation, writing the
! 870: the message digest and zeroizing the context.
! 871: */
! 872: PHP_HASH_API void PHP_SHA384Final(unsigned char digest[48], PHP_SHA384_CTX * context)
! 873: {
! 874: unsigned char bits[16];
! 875: unsigned int index, padLen;
! 876:
! 877: /* Save number of bits */
! 878: bits[15] = (unsigned char) (context->count[0] & 0xFF);
! 879: bits[14] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
! 880: bits[13] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
! 881: bits[12] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
! 882: bits[11] = (unsigned char) ((context->count[0] >> 32) & 0xFF);
! 883: bits[10] = (unsigned char) ((context->count[0] >> 40) & 0xFF);
! 884: bits[9] = (unsigned char) ((context->count[0] >> 48) & 0xFF);
! 885: bits[8] = (unsigned char) ((context->count[0] >> 56) & 0xFF);
! 886: bits[7] = (unsigned char) (context->count[1] & 0xFF);
! 887: bits[6] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
! 888: bits[5] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
! 889: bits[4] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
! 890: bits[3] = (unsigned char) ((context->count[1] >> 32) & 0xFF);
! 891: bits[2] = (unsigned char) ((context->count[1] >> 40) & 0xFF);
! 892: bits[1] = (unsigned char) ((context->count[1] >> 48) & 0xFF);
! 893: bits[0] = (unsigned char) ((context->count[1] >> 56) & 0xFF);
! 894:
! 895: /* Pad out to 112 mod 128.
! 896: */
! 897: index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
! 898: padLen = (index < 112) ? (112 - index) : (240 - index);
! 899: PHP_SHA384Update(context, PADDING, padLen);
! 900:
! 901: /* Append length (before padding) */
! 902: PHP_SHA384Update(context, bits, 16);
! 903:
! 904: /* Store state in digest */
! 905: SHAEncode64(digest, context->state, 48);
! 906:
! 907: /* Zeroize sensitive information.
! 908: */
! 909: memset((unsigned char*) context, 0, sizeof(*context));
! 910: }
! 911: /* }}} */
! 912:
! 913: const php_hash_ops php_hash_sha384_ops = {
! 914: (php_hash_init_func_t) PHP_SHA384Init,
! 915: (php_hash_update_func_t) PHP_SHA384Update,
! 916: (php_hash_final_func_t) PHP_SHA384Final,
! 917: (php_hash_copy_func_t) php_hash_copy,
! 918: 48,
! 919: 128,
! 920: sizeof(PHP_SHA384_CTX)
! 921: };
! 922:
! 923: /* {{{ PHP_SHA512Init
! 924: * SHA512 initialization. Begins an SHA512 operation, writing a new context.
! 925: */
! 926: PHP_HASH_API void PHP_SHA512Init(PHP_SHA512_CTX * context)
! 927: {
! 928: context->count[0] = context->count[1] = 0;
! 929: /* Load magic initialization constants.
! 930: */
! 931: context->state[0] = L64(0x6a09e667f3bcc908);
! 932: context->state[1] = L64(0xbb67ae8584caa73b);
! 933: context->state[2] = L64(0x3c6ef372fe94f82b);
! 934: context->state[3] = L64(0xa54ff53a5f1d36f1);
! 935: context->state[4] = L64(0x510e527fade682d1);
! 936: context->state[5] = L64(0x9b05688c2b3e6c1f);
! 937: context->state[6] = L64(0x1f83d9abfb41bd6b);
! 938: context->state[7] = L64(0x5be0cd19137e2179);
! 939: }
! 940: /* }}} */
! 941:
! 942: /* {{{ PHP_SHA512Update
! 943: SHA512 block update operation. Continues an SHA512 message-digest
! 944: operation, processing another message block, and updating the
! 945: context.
! 946: */
! 947: PHP_HASH_API void PHP_SHA512Update(PHP_SHA512_CTX * context, const unsigned char *input, unsigned int inputLen)
! 948: {
! 949: unsigned int i, index, partLen;
! 950:
! 951: /* Compute number of bytes mod 128 */
! 952: index = (unsigned int) ((context->count[0] >> 3) & 0x7F);
! 953:
! 954: /* Update number of bits */
! 955: if ((context->count[0] += ((php_hash_uint64) inputLen << 3)) < ((php_hash_uint64) inputLen << 3)) {
! 956: context->count[1]++;
! 957: }
! 958: context->count[1] += ((php_hash_uint64) inputLen >> 61);
! 959:
! 960: partLen = 128 - index;
! 961:
! 962: /* Transform as many times as possible.
! 963: */
! 964: if (inputLen >= partLen) {
! 965: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
! 966: SHA512Transform(context->state, context->buffer);
! 967:
! 968: for (i = partLen; i + 127 < inputLen; i += 128) {
! 969: SHA512Transform(context->state, &input[i]);
! 970: }
! 971:
! 972: index = 0;
! 973: } else {
! 974: i = 0;
! 975: }
! 976:
! 977: /* Buffer remaining input */
! 978: memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
! 979: }
! 980: /* }}} */
! 981:
! 982: /* {{{ PHP_SHA512Final
! 983: SHA512 finalization. Ends an SHA512 message-digest operation, writing the
! 984: the message digest and zeroizing the context.
! 985: */
! 986: PHP_HASH_API void PHP_SHA512Final(unsigned char digest[64], PHP_SHA512_CTX * context)
! 987: {
! 988: unsigned char bits[16];
! 989: unsigned int index, padLen;
! 990:
! 991: /* Save number of bits */
! 992: bits[15] = (unsigned char) (context->count[0] & 0xFF);
! 993: bits[14] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
! 994: bits[13] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
! 995: bits[12] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
! 996: bits[11] = (unsigned char) ((context->count[0] >> 32) & 0xFF);
! 997: bits[10] = (unsigned char) ((context->count[0] >> 40) & 0xFF);
! 998: bits[9] = (unsigned char) ((context->count[0] >> 48) & 0xFF);
! 999: bits[8] = (unsigned char) ((context->count[0] >> 56) & 0xFF);
! 1000: bits[7] = (unsigned char) (context->count[1] & 0xFF);
! 1001: bits[6] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
! 1002: bits[5] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
! 1003: bits[4] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
! 1004: bits[3] = (unsigned char) ((context->count[1] >> 32) & 0xFF);
! 1005: bits[2] = (unsigned char) ((context->count[1] >> 40) & 0xFF);
! 1006: bits[1] = (unsigned char) ((context->count[1] >> 48) & 0xFF);
! 1007: bits[0] = (unsigned char) ((context->count[1] >> 56) & 0xFF);
! 1008:
! 1009: /* Pad out to 112 mod 128.
! 1010: */
! 1011: index = (unsigned int) ((context->count[0] >> 3) & 0x7f);
! 1012: padLen = (index < 112) ? (112 - index) : (240 - index);
! 1013: PHP_SHA512Update(context, PADDING, padLen);
! 1014:
! 1015: /* Append length (before padding) */
! 1016: PHP_SHA512Update(context, bits, 16);
! 1017:
! 1018: /* Store state in digest */
! 1019: SHAEncode64(digest, context->state, 64);
! 1020:
! 1021: /* Zeroize sensitive information.
! 1022: */
! 1023: memset((unsigned char*) context, 0, sizeof(*context));
! 1024: }
! 1025: /* }}} */
! 1026:
! 1027: const php_hash_ops php_hash_sha512_ops = {
! 1028: (php_hash_init_func_t) PHP_SHA512Init,
! 1029: (php_hash_update_func_t) PHP_SHA512Update,
! 1030: (php_hash_final_func_t) PHP_SHA512Final,
! 1031: (php_hash_copy_func_t) php_hash_copy,
! 1032: 64,
! 1033: 128,
! 1034: sizeof(PHP_SHA512_CTX)
! 1035: };
! 1036:
! 1037: /*
! 1038: * Local variables:
! 1039: * tab-width: 4
! 1040: * c-basic-offset: 4
! 1041: * End:
! 1042: * vim600: sw=4 ts=4 fdm=marker
! 1043: * vim<600: sw=4 ts=4
! 1044: */
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