Annotation of embedaddon/curl/lib/md5.c, revision 1.1
1.1 ! misho 1: /***************************************************************************
! 2: * _ _ ____ _
! 3: * Project ___| | | | _ \| |
! 4: * / __| | | | |_) | |
! 5: * | (__| |_| | _ <| |___
! 6: * \___|\___/|_| \_\_____|
! 7: *
! 8: * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
! 9: *
! 10: * This software is licensed as described in the file COPYING, which
! 11: * you should have received as part of this distribution. The terms
! 12: * are also available at https://curl.haxx.se/docs/copyright.html.
! 13: *
! 14: * You may opt to use, copy, modify, merge, publish, distribute and/or sell
! 15: * copies of the Software, and permit persons to whom the Software is
! 16: * furnished to do so, under the terms of the COPYING file.
! 17: *
! 18: * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
! 19: * KIND, either express or implied.
! 20: *
! 21: ***************************************************************************/
! 22:
! 23: #include "curl_setup.h"
! 24:
! 25: #ifndef CURL_DISABLE_CRYPTO_AUTH
! 26:
! 27: #include <curl/curl.h>
! 28:
! 29: #include "curl_md5.h"
! 30: #include "curl_hmac.h"
! 31: #include "warnless.h"
! 32:
! 33: #ifdef USE_MBEDTLS
! 34: #include <mbedtls/version.h>
! 35:
! 36: #if(MBEDTLS_VERSION_NUMBER >= 0x02070000)
! 37: #define HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS
! 38: #endif
! 39: #endif /* USE_MBEDTLS */
! 40:
! 41: #if defined(USE_GNUTLS_NETTLE)
! 42:
! 43: #include <nettle/md5.h>
! 44: #include "curl_memory.h"
! 45: /* The last #include file should be: */
! 46: #include "memdebug.h"
! 47:
! 48: typedef struct md5_ctx MD5_CTX;
! 49:
! 50: static void MD5_Init(MD5_CTX *ctx)
! 51: {
! 52: md5_init(ctx);
! 53: }
! 54:
! 55: static void MD5_Update(MD5_CTX *ctx,
! 56: const unsigned char *input,
! 57: unsigned int inputLen)
! 58: {
! 59: md5_update(ctx, inputLen, input);
! 60: }
! 61:
! 62: static void MD5_Final(unsigned char *digest, MD5_CTX *ctx)
! 63: {
! 64: md5_digest(ctx, 16, digest);
! 65: }
! 66:
! 67: #elif defined(USE_GNUTLS)
! 68:
! 69: #include <gcrypt.h>
! 70: #include "curl_memory.h"
! 71: /* The last #include file should be: */
! 72: #include "memdebug.h"
! 73:
! 74: typedef gcry_md_hd_t MD5_CTX;
! 75:
! 76: static void MD5_Init(MD5_CTX *ctx)
! 77: {
! 78: gcry_md_open(ctx, GCRY_MD_MD5, 0);
! 79: }
! 80:
! 81: static void MD5_Update(MD5_CTX *ctx,
! 82: const unsigned char *input,
! 83: unsigned int inputLen)
! 84: {
! 85: gcry_md_write(*ctx, input, inputLen);
! 86: }
! 87:
! 88: static void MD5_Final(unsigned char *digest, MD5_CTX *ctx)
! 89: {
! 90: memcpy(digest, gcry_md_read(*ctx, 0), 16);
! 91: gcry_md_close(*ctx);
! 92: }
! 93:
! 94: #elif defined(USE_OPENSSL) && !defined(USE_AMISSL)
! 95: /* When OpenSSL is available we use the MD5-function from OpenSSL */
! 96: #include <openssl/md5.h>
! 97: #include "curl_memory.h"
! 98: /* The last #include file should be: */
! 99: #include "memdebug.h"
! 100:
! 101: #elif defined(USE_MBEDTLS)
! 102:
! 103: #include <mbedtls/md5.h>
! 104:
! 105: #include "curl_memory.h"
! 106:
! 107: /* The last #include file should be: */
! 108: #include "memdebug.h"
! 109:
! 110: typedef mbedtls_md5_context MD5_CTX;
! 111:
! 112: static void MD5_Init(MD5_CTX *ctx)
! 113: {
! 114: #if !defined(HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS)
! 115: mbedtls_md5_starts(ctx);
! 116: #else
! 117: (void) mbedtls_md5_starts_ret(ctx);
! 118: #endif
! 119: }
! 120:
! 121: static void MD5_Update(MD5_CTX *ctx,
! 122: const unsigned char *data,
! 123: unsigned int length)
! 124: {
! 125: #if !defined(HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS)
! 126: mbedtls_md5_update(ctx, data, length);
! 127: #else
! 128: (void) mbedtls_md5_update_ret(ctx, data, length);
! 129: #endif
! 130: }
! 131:
! 132: static void MD5_Final(unsigned char *digest, MD5_CTX *ctx)
! 133: {
! 134: #if !defined(HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS)
! 135: mbedtls_md5_finish(ctx, digest);
! 136: #else
! 137: (void) mbedtls_md5_finish_ret(ctx, digest);
! 138: #endif
! 139: }
! 140:
! 141: #elif (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && \
! 142: (__MAC_OS_X_VERSION_MAX_ALLOWED >= 1040)) || \
! 143: (defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && \
! 144: (__IPHONE_OS_VERSION_MAX_ALLOWED >= 20000))
! 145:
! 146: /* For Apple operating systems: CommonCrypto has the functions we need.
! 147: These functions are available on Tiger and later, as well as iOS 2.0
! 148: and later. If you're building for an older cat, well, sorry.
! 149:
! 150: Declaring the functions as static like this seems to be a bit more
! 151: reliable than defining COMMON_DIGEST_FOR_OPENSSL on older cats. */
! 152: # include <CommonCrypto/CommonDigest.h>
! 153: # define MD5_CTX CC_MD5_CTX
! 154: #include "curl_memory.h"
! 155: /* The last #include file should be: */
! 156: #include "memdebug.h"
! 157:
! 158: static void MD5_Init(MD5_CTX *ctx)
! 159: {
! 160: CC_MD5_Init(ctx);
! 161: }
! 162:
! 163: static void MD5_Update(MD5_CTX *ctx,
! 164: const unsigned char *input,
! 165: unsigned int inputLen)
! 166: {
! 167: CC_MD5_Update(ctx, input, inputLen);
! 168: }
! 169:
! 170: static void MD5_Final(unsigned char *digest, MD5_CTX *ctx)
! 171: {
! 172: CC_MD5_Final(digest, ctx);
! 173: }
! 174:
! 175: #elif defined(USE_WIN32_CRYPTO)
! 176:
! 177: #include <wincrypt.h>
! 178: #include "curl_memory.h"
! 179: /* The last #include file should be: */
! 180: #include "memdebug.h"
! 181:
! 182: typedef struct {
! 183: HCRYPTPROV hCryptProv;
! 184: HCRYPTHASH hHash;
! 185: } MD5_CTX;
! 186:
! 187: static void MD5_Init(MD5_CTX *ctx)
! 188: {
! 189: if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
! 190: CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
! 191: CryptCreateHash(ctx->hCryptProv, CALG_MD5, 0, 0, &ctx->hHash);
! 192: }
! 193: }
! 194:
! 195: static void MD5_Update(MD5_CTX *ctx,
! 196: const unsigned char *input,
! 197: unsigned int inputLen)
! 198: {
! 199: CryptHashData(ctx->hHash, (unsigned char *)input, inputLen, 0);
! 200: }
! 201:
! 202: static void MD5_Final(unsigned char *digest, MD5_CTX *ctx)
! 203: {
! 204: unsigned long length = 0;
! 205: CryptGetHashParam(ctx->hHash, HP_HASHVAL, NULL, &length, 0);
! 206: if(length == 16)
! 207: CryptGetHashParam(ctx->hHash, HP_HASHVAL, digest, &length, 0);
! 208: if(ctx->hHash)
! 209: CryptDestroyHash(ctx->hHash);
! 210: if(ctx->hCryptProv)
! 211: CryptReleaseContext(ctx->hCryptProv, 0);
! 212: }
! 213:
! 214: #else
! 215:
! 216: /* When no other crypto library is available we use this code segment */
! 217:
! 218: /*
! 219: * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
! 220: * MD5 Message-Digest Algorithm (RFC 1321).
! 221: *
! 222: * Homepage:
! 223: https://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
! 224: *
! 225: * Author:
! 226: * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
! 227: *
! 228: * This software was written by Alexander Peslyak in 2001. No copyright is
! 229: * claimed, and the software is hereby placed in the public domain.
! 230: * In case this attempt to disclaim copyright and place the software in the
! 231: * public domain is deemed null and void, then the software is
! 232: * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
! 233: * general public under the following terms:
! 234: *
! 235: * Redistribution and use in source and binary forms, with or without
! 236: * modification, are permitted.
! 237: *
! 238: * There's ABSOLUTELY NO WARRANTY, express or implied.
! 239: *
! 240: * (This is a heavily cut-down "BSD license".)
! 241: *
! 242: * This differs from Colin Plumb's older public domain implementation in that
! 243: * no exactly 32-bit integer data type is required (any 32-bit or wider
! 244: * unsigned integer data type will do), there's no compile-time endianness
! 245: * configuration, and the function prototypes match OpenSSL's. No code from
! 246: * Colin Plumb's implementation has been reused; this comment merely compares
! 247: * the properties of the two independent implementations.
! 248: *
! 249: * The primary goals of this implementation are portability and ease of use.
! 250: * It is meant to be fast, but not as fast as possible. Some known
! 251: * optimizations are not included to reduce source code size and avoid
! 252: * compile-time configuration.
! 253: */
! 254:
! 255: #include <string.h>
! 256:
! 257: /* The last #include files should be: */
! 258: #include "curl_memory.h"
! 259: #include "memdebug.h"
! 260:
! 261: /* Any 32-bit or wider unsigned integer data type will do */
! 262: typedef unsigned int MD5_u32plus;
! 263:
! 264: typedef struct {
! 265: MD5_u32plus lo, hi;
! 266: MD5_u32plus a, b, c, d;
! 267: unsigned char buffer[64];
! 268: MD5_u32plus block[16];
! 269: } MD5_CTX;
! 270:
! 271: static void MD5_Init(MD5_CTX *ctx);
! 272: static void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size);
! 273: static void MD5_Final(unsigned char *result, MD5_CTX *ctx);
! 274:
! 275: /*
! 276: * The basic MD5 functions.
! 277: *
! 278: * F and G are optimized compared to their RFC 1321 definitions for
! 279: * architectures that lack an AND-NOT instruction, just like in Colin Plumb's
! 280: * implementation.
! 281: */
! 282: #define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
! 283: #define G(x, y, z) ((y) ^ ((z) & ((x) ^ (y))))
! 284: #define H(x, y, z) (((x) ^ (y)) ^ (z))
! 285: #define H2(x, y, z) ((x) ^ ((y) ^ (z)))
! 286: #define I(x, y, z) ((y) ^ ((x) | ~(z)))
! 287:
! 288: /*
! 289: * The MD5 transformation for all four rounds.
! 290: */
! 291: #define STEP(f, a, b, c, d, x, t, s) \
! 292: (a) += f((b), (c), (d)) + (x) + (t); \
! 293: (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
! 294: (a) += (b);
! 295:
! 296: /*
! 297: * SET reads 4 input bytes in little-endian byte order and stores them
! 298: * in a properly aligned word in host byte order.
! 299: *
! 300: * The check for little-endian architectures that tolerate unaligned
! 301: * memory accesses is just an optimization. Nothing will break if it
! 302: * doesn't work.
! 303: */
! 304: #if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
! 305: #define SET(n) \
! 306: (*(MD5_u32plus *)(void *)&ptr[(n) * 4])
! 307: #define GET(n) \
! 308: SET(n)
! 309: #else
! 310: #define SET(n) \
! 311: (ctx->block[(n)] = \
! 312: (MD5_u32plus)ptr[(n) * 4] | \
! 313: ((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \
! 314: ((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \
! 315: ((MD5_u32plus)ptr[(n) * 4 + 3] << 24))
! 316: #define GET(n) \
! 317: (ctx->block[(n)])
! 318: #endif
! 319:
! 320: /*
! 321: * This processes one or more 64-byte data blocks, but does NOT update
! 322: * the bit counters. There are no alignment requirements.
! 323: */
! 324: static const void *body(MD5_CTX *ctx, const void *data, unsigned long size)
! 325: {
! 326: const unsigned char *ptr;
! 327: MD5_u32plus a, b, c, d;
! 328:
! 329: ptr = (const unsigned char *)data;
! 330:
! 331: a = ctx->a;
! 332: b = ctx->b;
! 333: c = ctx->c;
! 334: d = ctx->d;
! 335:
! 336: do {
! 337: MD5_u32plus saved_a, saved_b, saved_c, saved_d;
! 338:
! 339: saved_a = a;
! 340: saved_b = b;
! 341: saved_c = c;
! 342: saved_d = d;
! 343:
! 344: /* Round 1 */
! 345: STEP(F, a, b, c, d, SET(0), 0xd76aa478, 7)
! 346: STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)
! 347: STEP(F, c, d, a, b, SET(2), 0x242070db, 17)
! 348: STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)
! 349: STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)
! 350: STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)
! 351: STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)
! 352: STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)
! 353: STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)
! 354: STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)
! 355: STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)
! 356: STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)
! 357: STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)
! 358: STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)
! 359: STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)
! 360: STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)
! 361:
! 362: /* Round 2 */
! 363: STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)
! 364: STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)
! 365: STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)
! 366: STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)
! 367: STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)
! 368: STEP(G, d, a, b, c, GET(10), 0x02441453, 9)
! 369: STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)
! 370: STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)
! 371: STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)
! 372: STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)
! 373: STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)
! 374: STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)
! 375: STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)
! 376: STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)
! 377: STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)
! 378: STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)
! 379:
! 380: /* Round 3 */
! 381: STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
! 382: STEP(H2, d, a, b, c, GET(8), 0x8771f681, 11)
! 383: STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
! 384: STEP(H2, b, c, d, a, GET(14), 0xfde5380c, 23)
! 385: STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
! 386: STEP(H2, d, a, b, c, GET(4), 0x4bdecfa9, 11)
! 387: STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
! 388: STEP(H2, b, c, d, a, GET(10), 0xbebfbc70, 23)
! 389: STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
! 390: STEP(H2, d, a, b, c, GET(0), 0xeaa127fa, 11)
! 391: STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
! 392: STEP(H2, b, c, d, a, GET(6), 0x04881d05, 23)
! 393: STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
! 394: STEP(H2, d, a, b, c, GET(12), 0xe6db99e5, 11)
! 395: STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
! 396: STEP(H2, b, c, d, a, GET(2), 0xc4ac5665, 23)
! 397:
! 398: /* Round 4 */
! 399: STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
! 400: STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)
! 401: STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)
! 402: STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)
! 403: STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)
! 404: STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)
! 405: STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)
! 406: STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)
! 407: STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)
! 408: STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)
! 409: STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)
! 410: STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)
! 411: STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)
! 412: STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)
! 413: STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)
! 414: STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)
! 415:
! 416: a += saved_a;
! 417: b += saved_b;
! 418: c += saved_c;
! 419: d += saved_d;
! 420:
! 421: ptr += 64;
! 422: } while(size -= 64);
! 423:
! 424: ctx->a = a;
! 425: ctx->b = b;
! 426: ctx->c = c;
! 427: ctx->d = d;
! 428:
! 429: return ptr;
! 430: }
! 431:
! 432: static void MD5_Init(MD5_CTX *ctx)
! 433: {
! 434: ctx->a = 0x67452301;
! 435: ctx->b = 0xefcdab89;
! 436: ctx->c = 0x98badcfe;
! 437: ctx->d = 0x10325476;
! 438:
! 439: ctx->lo = 0;
! 440: ctx->hi = 0;
! 441: }
! 442:
! 443: static void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
! 444: {
! 445: MD5_u32plus saved_lo;
! 446: unsigned long used;
! 447:
! 448: saved_lo = ctx->lo;
! 449: ctx->lo = (saved_lo + size) & 0x1fffffff;
! 450: if(ctx->lo < saved_lo)
! 451: ctx->hi++;
! 452: ctx->hi += (MD5_u32plus)size >> 29;
! 453:
! 454: used = saved_lo & 0x3f;
! 455:
! 456: if(used) {
! 457: unsigned long available = 64 - used;
! 458:
! 459: if(size < available) {
! 460: memcpy(&ctx->buffer[used], data, size);
! 461: return;
! 462: }
! 463:
! 464: memcpy(&ctx->buffer[used], data, available);
! 465: data = (const unsigned char *)data + available;
! 466: size -= available;
! 467: body(ctx, ctx->buffer, 64);
! 468: }
! 469:
! 470: if(size >= 64) {
! 471: data = body(ctx, data, size & ~(unsigned long)0x3f);
! 472: size &= 0x3f;
! 473: }
! 474:
! 475: memcpy(ctx->buffer, data, size);
! 476: }
! 477:
! 478: static void MD5_Final(unsigned char *result, MD5_CTX *ctx)
! 479: {
! 480: unsigned long used, available;
! 481:
! 482: used = ctx->lo & 0x3f;
! 483:
! 484: ctx->buffer[used++] = 0x80;
! 485:
! 486: available = 64 - used;
! 487:
! 488: if(available < 8) {
! 489: memset(&ctx->buffer[used], 0, available);
! 490: body(ctx, ctx->buffer, 64);
! 491: used = 0;
! 492: available = 64;
! 493: }
! 494:
! 495: memset(&ctx->buffer[used], 0, available - 8);
! 496:
! 497: ctx->lo <<= 3;
! 498: ctx->buffer[56] = curlx_ultouc((ctx->lo)&0xff);
! 499: ctx->buffer[57] = curlx_ultouc((ctx->lo >> 8)&0xff);
! 500: ctx->buffer[58] = curlx_ultouc((ctx->lo >> 16)&0xff);
! 501: ctx->buffer[59] = curlx_ultouc(ctx->lo >> 24);
! 502: ctx->buffer[60] = curlx_ultouc((ctx->hi)&0xff);
! 503: ctx->buffer[61] = curlx_ultouc((ctx->hi >> 8)&0xff);
! 504: ctx->buffer[62] = curlx_ultouc((ctx->hi >> 16)&0xff);
! 505: ctx->buffer[63] = curlx_ultouc(ctx->hi >> 24);
! 506:
! 507: body(ctx, ctx->buffer, 64);
! 508:
! 509: result[0] = curlx_ultouc((ctx->a)&0xff);
! 510: result[1] = curlx_ultouc((ctx->a >> 8)&0xff);
! 511: result[2] = curlx_ultouc((ctx->a >> 16)&0xff);
! 512: result[3] = curlx_ultouc(ctx->a >> 24);
! 513: result[4] = curlx_ultouc((ctx->b)&0xff);
! 514: result[5] = curlx_ultouc((ctx->b >> 8)&0xff);
! 515: result[6] = curlx_ultouc((ctx->b >> 16)&0xff);
! 516: result[7] = curlx_ultouc(ctx->b >> 24);
! 517: result[8] = curlx_ultouc((ctx->c)&0xff);
! 518: result[9] = curlx_ultouc((ctx->c >> 8)&0xff);
! 519: result[10] = curlx_ultouc((ctx->c >> 16)&0xff);
! 520: result[11] = curlx_ultouc(ctx->c >> 24);
! 521: result[12] = curlx_ultouc((ctx->d)&0xff);
! 522: result[13] = curlx_ultouc((ctx->d >> 8)&0xff);
! 523: result[14] = curlx_ultouc((ctx->d >> 16)&0xff);
! 524: result[15] = curlx_ultouc(ctx->d >> 24);
! 525:
! 526: memset(ctx, 0, sizeof(*ctx));
! 527: }
! 528:
! 529: #endif /* CRYPTO LIBS */
! 530:
! 531: const HMAC_params Curl_HMAC_MD5[] = {
! 532: {
! 533: /* Hash initialization function. */
! 534: CURLX_FUNCTION_CAST(HMAC_hinit_func, MD5_Init),
! 535: /* Hash update function. */
! 536: CURLX_FUNCTION_CAST(HMAC_hupdate_func, MD5_Update),
! 537: /* Hash computation end function. */
! 538: CURLX_FUNCTION_CAST(HMAC_hfinal_func, MD5_Final),
! 539: /* Size of hash context structure. */
! 540: sizeof(MD5_CTX),
! 541: /* Maximum key length. */
! 542: 64,
! 543: /* Result size. */
! 544: 16
! 545: }
! 546: };
! 547:
! 548: const MD5_params Curl_DIGEST_MD5[] = {
! 549: {
! 550: /* Digest initialization function */
! 551: CURLX_FUNCTION_CAST(Curl_MD5_init_func, MD5_Init),
! 552: /* Digest update function */
! 553: CURLX_FUNCTION_CAST(Curl_MD5_update_func, MD5_Update),
! 554: /* Digest computation end function */
! 555: CURLX_FUNCTION_CAST(Curl_MD5_final_func, MD5_Final),
! 556: /* Size of digest context struct */
! 557: sizeof(MD5_CTX),
! 558: /* Result size */
! 559: 16
! 560: }
! 561: };
! 562:
! 563: /*
! 564: * @unittest: 1601
! 565: */
! 566: void Curl_md5it(unsigned char *outbuffer, const unsigned char *input,
! 567: const size_t len)
! 568: {
! 569: MD5_CTX ctx;
! 570:
! 571: MD5_Init(&ctx);
! 572: MD5_Update(&ctx, input, curlx_uztoui(len));
! 573: MD5_Final(outbuffer, &ctx);
! 574: }
! 575:
! 576: MD5_context *Curl_MD5_init(const MD5_params *md5params)
! 577: {
! 578: MD5_context *ctxt;
! 579:
! 580: /* Create MD5 context */
! 581: ctxt = malloc(sizeof(*ctxt));
! 582:
! 583: if(!ctxt)
! 584: return ctxt;
! 585:
! 586: ctxt->md5_hashctx = malloc(md5params->md5_ctxtsize);
! 587:
! 588: if(!ctxt->md5_hashctx) {
! 589: free(ctxt);
! 590: return NULL;
! 591: }
! 592:
! 593: ctxt->md5_hash = md5params;
! 594:
! 595: (*md5params->md5_init_func)(ctxt->md5_hashctx);
! 596:
! 597: return ctxt;
! 598: }
! 599:
! 600: CURLcode Curl_MD5_update(MD5_context *context,
! 601: const unsigned char *data,
! 602: unsigned int len)
! 603: {
! 604: (*context->md5_hash->md5_update_func)(context->md5_hashctx, data, len);
! 605:
! 606: return CURLE_OK;
! 607: }
! 608:
! 609: CURLcode Curl_MD5_final(MD5_context *context, unsigned char *result)
! 610: {
! 611: (*context->md5_hash->md5_final_func)(result, context->md5_hashctx);
! 612:
! 613: free(context->md5_hashctx);
! 614: free(context);
! 615:
! 616: return CURLE_OK;
! 617: }
! 618:
! 619: #endif /* CURL_DISABLE_CRYPTO_AUTH */
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