| /* |
| * RFC 1321 compliant MD5 implementation |
| * |
| * Copyright The Mbed TLS Contributors |
| * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| */ |
| /* |
| * The MD5 algorithm was designed by Ron Rivest in 1991. |
| * |
| * http://www.ietf.org/rfc/rfc1321.txt |
| */ |
| |
| #include "common.h" |
| |
| #if defined(MBEDTLS_MD5_C) |
| |
| #include "mbedtls/md5.h" |
| #include "mbedtls/platform_util.h" |
| #include "mbedtls/error.h" |
| |
| #include <string.h> |
| |
| #include "mbedtls/platform.h" |
| |
| #if !defined(MBEDTLS_MD5_ALT) |
| |
| void mbedtls_md5_init(mbedtls_md5_context *ctx) |
| { |
| memset(ctx, 0, sizeof(mbedtls_md5_context)); |
| } |
| |
| void mbedtls_md5_free(mbedtls_md5_context *ctx) |
| { |
| if (ctx == NULL) { |
| return; |
| } |
| |
| mbedtls_platform_zeroize(ctx, sizeof(mbedtls_md5_context)); |
| } |
| |
| void mbedtls_md5_clone(mbedtls_md5_context *dst, |
| const mbedtls_md5_context *src) |
| { |
| *dst = *src; |
| } |
| |
| /* |
| * MD5 context setup |
| */ |
| int mbedtls_md5_starts(mbedtls_md5_context *ctx) |
| { |
| ctx->total[0] = 0; |
| ctx->total[1] = 0; |
| |
| ctx->state[0] = 0x67452301; |
| ctx->state[1] = 0xEFCDAB89; |
| ctx->state[2] = 0x98BADCFE; |
| ctx->state[3] = 0x10325476; |
| |
| return 0; |
| } |
| |
| #if !defined(MBEDTLS_MD5_PROCESS_ALT) |
| int mbedtls_internal_md5_process(mbedtls_md5_context *ctx, |
| const unsigned char data[64]) |
| { |
| struct { |
| uint32_t X[16], A, B, C, D; |
| } local; |
| |
| local.X[0] = MBEDTLS_GET_UINT32_LE(data, 0); |
| local.X[1] = MBEDTLS_GET_UINT32_LE(data, 4); |
| local.X[2] = MBEDTLS_GET_UINT32_LE(data, 8); |
| local.X[3] = MBEDTLS_GET_UINT32_LE(data, 12); |
| local.X[4] = MBEDTLS_GET_UINT32_LE(data, 16); |
| local.X[5] = MBEDTLS_GET_UINT32_LE(data, 20); |
| local.X[6] = MBEDTLS_GET_UINT32_LE(data, 24); |
| local.X[7] = MBEDTLS_GET_UINT32_LE(data, 28); |
| local.X[8] = MBEDTLS_GET_UINT32_LE(data, 32); |
| local.X[9] = MBEDTLS_GET_UINT32_LE(data, 36); |
| local.X[10] = MBEDTLS_GET_UINT32_LE(data, 40); |
| local.X[11] = MBEDTLS_GET_UINT32_LE(data, 44); |
| local.X[12] = MBEDTLS_GET_UINT32_LE(data, 48); |
| local.X[13] = MBEDTLS_GET_UINT32_LE(data, 52); |
| local.X[14] = MBEDTLS_GET_UINT32_LE(data, 56); |
| local.X[15] = MBEDTLS_GET_UINT32_LE(data, 60); |
| |
| #define S(x, n) \ |
| (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n)))) |
| |
| #define P(a, b, c, d, k, s, t) \ |
| do \ |
| { \ |
| (a) += F((b), (c), (d)) + local.X[(k)] + (t); \ |
| (a) = S((a), (s)) + (b); \ |
| } while (0) |
| |
| local.A = ctx->state[0]; |
| local.B = ctx->state[1]; |
| local.C = ctx->state[2]; |
| local.D = ctx->state[3]; |
| |
| #define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) |
| |
| P(local.A, local.B, local.C, local.D, 0, 7, 0xD76AA478); |
| P(local.D, local.A, local.B, local.C, 1, 12, 0xE8C7B756); |
| P(local.C, local.D, local.A, local.B, 2, 17, 0x242070DB); |
| P(local.B, local.C, local.D, local.A, 3, 22, 0xC1BDCEEE); |
| P(local.A, local.B, local.C, local.D, 4, 7, 0xF57C0FAF); |
| P(local.D, local.A, local.B, local.C, 5, 12, 0x4787C62A); |
| P(local.C, local.D, local.A, local.B, 6, 17, 0xA8304613); |
| P(local.B, local.C, local.D, local.A, 7, 22, 0xFD469501); |
| P(local.A, local.B, local.C, local.D, 8, 7, 0x698098D8); |
| P(local.D, local.A, local.B, local.C, 9, 12, 0x8B44F7AF); |
| P(local.C, local.D, local.A, local.B, 10, 17, 0xFFFF5BB1); |
| P(local.B, local.C, local.D, local.A, 11, 22, 0x895CD7BE); |
| P(local.A, local.B, local.C, local.D, 12, 7, 0x6B901122); |
| P(local.D, local.A, local.B, local.C, 13, 12, 0xFD987193); |
| P(local.C, local.D, local.A, local.B, 14, 17, 0xA679438E); |
| P(local.B, local.C, local.D, local.A, 15, 22, 0x49B40821); |
| |
| #undef F |
| |
| #define F(x, y, z) ((y) ^ ((z) & ((x) ^ (y)))) |
| |
| P(local.A, local.B, local.C, local.D, 1, 5, 0xF61E2562); |
| P(local.D, local.A, local.B, local.C, 6, 9, 0xC040B340); |
| P(local.C, local.D, local.A, local.B, 11, 14, 0x265E5A51); |
| P(local.B, local.C, local.D, local.A, 0, 20, 0xE9B6C7AA); |
| P(local.A, local.B, local.C, local.D, 5, 5, 0xD62F105D); |
| P(local.D, local.A, local.B, local.C, 10, 9, 0x02441453); |
| P(local.C, local.D, local.A, local.B, 15, 14, 0xD8A1E681); |
| P(local.B, local.C, local.D, local.A, 4, 20, 0xE7D3FBC8); |
| P(local.A, local.B, local.C, local.D, 9, 5, 0x21E1CDE6); |
| P(local.D, local.A, local.B, local.C, 14, 9, 0xC33707D6); |
| P(local.C, local.D, local.A, local.B, 3, 14, 0xF4D50D87); |
| P(local.B, local.C, local.D, local.A, 8, 20, 0x455A14ED); |
| P(local.A, local.B, local.C, local.D, 13, 5, 0xA9E3E905); |
| P(local.D, local.A, local.B, local.C, 2, 9, 0xFCEFA3F8); |
| P(local.C, local.D, local.A, local.B, 7, 14, 0x676F02D9); |
| P(local.B, local.C, local.D, local.A, 12, 20, 0x8D2A4C8A); |
| |
| #undef F |
| |
| #define F(x, y, z) ((x) ^ (y) ^ (z)) |
| |
| P(local.A, local.B, local.C, local.D, 5, 4, 0xFFFA3942); |
| P(local.D, local.A, local.B, local.C, 8, 11, 0x8771F681); |
| P(local.C, local.D, local.A, local.B, 11, 16, 0x6D9D6122); |
| P(local.B, local.C, local.D, local.A, 14, 23, 0xFDE5380C); |
| P(local.A, local.B, local.C, local.D, 1, 4, 0xA4BEEA44); |
| P(local.D, local.A, local.B, local.C, 4, 11, 0x4BDECFA9); |
| P(local.C, local.D, local.A, local.B, 7, 16, 0xF6BB4B60); |
| P(local.B, local.C, local.D, local.A, 10, 23, 0xBEBFBC70); |
| P(local.A, local.B, local.C, local.D, 13, 4, 0x289B7EC6); |
| P(local.D, local.A, local.B, local.C, 0, 11, 0xEAA127FA); |
| P(local.C, local.D, local.A, local.B, 3, 16, 0xD4EF3085); |
| P(local.B, local.C, local.D, local.A, 6, 23, 0x04881D05); |
| P(local.A, local.B, local.C, local.D, 9, 4, 0xD9D4D039); |
| P(local.D, local.A, local.B, local.C, 12, 11, 0xE6DB99E5); |
| P(local.C, local.D, local.A, local.B, 15, 16, 0x1FA27CF8); |
| P(local.B, local.C, local.D, local.A, 2, 23, 0xC4AC5665); |
| |
| #undef F |
| |
| #define F(x, y, z) ((y) ^ ((x) | ~(z))) |
| |
| P(local.A, local.B, local.C, local.D, 0, 6, 0xF4292244); |
| P(local.D, local.A, local.B, local.C, 7, 10, 0x432AFF97); |
| P(local.C, local.D, local.A, local.B, 14, 15, 0xAB9423A7); |
| P(local.B, local.C, local.D, local.A, 5, 21, 0xFC93A039); |
| P(local.A, local.B, local.C, local.D, 12, 6, 0x655B59C3); |
| P(local.D, local.A, local.B, local.C, 3, 10, 0x8F0CCC92); |
| P(local.C, local.D, local.A, local.B, 10, 15, 0xFFEFF47D); |
| P(local.B, local.C, local.D, local.A, 1, 21, 0x85845DD1); |
| P(local.A, local.B, local.C, local.D, 8, 6, 0x6FA87E4F); |
| P(local.D, local.A, local.B, local.C, 15, 10, 0xFE2CE6E0); |
| P(local.C, local.D, local.A, local.B, 6, 15, 0xA3014314); |
| P(local.B, local.C, local.D, local.A, 13, 21, 0x4E0811A1); |
| P(local.A, local.B, local.C, local.D, 4, 6, 0xF7537E82); |
| P(local.D, local.A, local.B, local.C, 11, 10, 0xBD3AF235); |
| P(local.C, local.D, local.A, local.B, 2, 15, 0x2AD7D2BB); |
| P(local.B, local.C, local.D, local.A, 9, 21, 0xEB86D391); |
| |
| #undef F |
| |
| ctx->state[0] += local.A; |
| ctx->state[1] += local.B; |
| ctx->state[2] += local.C; |
| ctx->state[3] += local.D; |
| |
| /* Zeroise variables to clear sensitive data from memory. */ |
| mbedtls_platform_zeroize(&local, sizeof(local)); |
| |
| return 0; |
| } |
| |
| #endif /* !MBEDTLS_MD5_PROCESS_ALT */ |
| |
| /* |
| * MD5 process buffer |
| */ |
| int mbedtls_md5_update(mbedtls_md5_context *ctx, |
| const unsigned char *input, |
| size_t ilen) |
| { |
| int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
| size_t fill; |
| uint32_t left; |
| |
| if (ilen == 0) { |
| return 0; |
| } |
| |
| left = ctx->total[0] & 0x3F; |
| fill = 64 - left; |
| |
| ctx->total[0] += (uint32_t) ilen; |
| ctx->total[0] &= 0xFFFFFFFF; |
| |
| if (ctx->total[0] < (uint32_t) ilen) { |
| ctx->total[1]++; |
| } |
| |
| if (left && ilen >= fill) { |
| memcpy((void *) (ctx->buffer + left), input, fill); |
| if ((ret = mbedtls_internal_md5_process(ctx, ctx->buffer)) != 0) { |
| return ret; |
| } |
| |
| input += fill; |
| ilen -= fill; |
| left = 0; |
| } |
| |
| while (ilen >= 64) { |
| if ((ret = mbedtls_internal_md5_process(ctx, input)) != 0) { |
| return ret; |
| } |
| |
| input += 64; |
| ilen -= 64; |
| } |
| |
| if (ilen > 0) { |
| memcpy((void *) (ctx->buffer + left), input, ilen); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * MD5 final digest |
| */ |
| int mbedtls_md5_finish(mbedtls_md5_context *ctx, |
| unsigned char output[16]) |
| { |
| int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
| uint32_t used; |
| uint32_t high, low; |
| |
| /* |
| * Add padding: 0x80 then 0x00 until 8 bytes remain for the length |
| */ |
| used = ctx->total[0] & 0x3F; |
| |
| ctx->buffer[used++] = 0x80; |
| |
| if (used <= 56) { |
| /* Enough room for padding + length in current block */ |
| memset(ctx->buffer + used, 0, 56 - used); |
| } else { |
| /* We'll need an extra block */ |
| memset(ctx->buffer + used, 0, 64 - used); |
| |
| if ((ret = mbedtls_internal_md5_process(ctx, ctx->buffer)) != 0) { |
| goto exit; |
| } |
| |
| memset(ctx->buffer, 0, 56); |
| } |
| |
| /* |
| * Add message length |
| */ |
| high = (ctx->total[0] >> 29) |
| | (ctx->total[1] << 3); |
| low = (ctx->total[0] << 3); |
| |
| MBEDTLS_PUT_UINT32_LE(low, ctx->buffer, 56); |
| MBEDTLS_PUT_UINT32_LE(high, ctx->buffer, 60); |
| |
| if ((ret = mbedtls_internal_md5_process(ctx, ctx->buffer)) != 0) { |
| goto exit; |
| } |
| |
| /* |
| * Output final state |
| */ |
| MBEDTLS_PUT_UINT32_LE(ctx->state[0], output, 0); |
| MBEDTLS_PUT_UINT32_LE(ctx->state[1], output, 4); |
| MBEDTLS_PUT_UINT32_LE(ctx->state[2], output, 8); |
| MBEDTLS_PUT_UINT32_LE(ctx->state[3], output, 12); |
| |
| ret = 0; |
| |
| exit: |
| mbedtls_md5_free(ctx); |
| return ret; |
| } |
| |
| #endif /* !MBEDTLS_MD5_ALT */ |
| |
| /* |
| * output = MD5( input buffer ) |
| */ |
| int mbedtls_md5(const unsigned char *input, |
| size_t ilen, |
| unsigned char output[16]) |
| { |
| int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
| mbedtls_md5_context ctx; |
| |
| mbedtls_md5_init(&ctx); |
| |
| if ((ret = mbedtls_md5_starts(&ctx)) != 0) { |
| goto exit; |
| } |
| |
| if ((ret = mbedtls_md5_update(&ctx, input, ilen)) != 0) { |
| goto exit; |
| } |
| |
| if ((ret = mbedtls_md5_finish(&ctx, output)) != 0) { |
| goto exit; |
| } |
| |
| exit: |
| mbedtls_md5_free(&ctx); |
| |
| return ret; |
| } |
| |
| #if defined(MBEDTLS_SELF_TEST) |
| /* |
| * RFC 1321 test vectors |
| */ |
| static const unsigned char md5_test_buf[7][81] = |
| { |
| { "" }, |
| { "a" }, |
| { "abc" }, |
| { "message digest" }, |
| { "abcdefghijklmnopqrstuvwxyz" }, |
| { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, |
| { "12345678901234567890123456789012345678901234567890123456789012345678901234567890" } |
| }; |
| |
| static const size_t md5_test_buflen[7] = |
| { |
| 0, 1, 3, 14, 26, 62, 80 |
| }; |
| |
| static const unsigned char md5_test_sum[7][16] = |
| { |
| { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04, |
| 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E }, |
| { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8, |
| 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 }, |
| { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0, |
| 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 }, |
| { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D, |
| 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 }, |
| { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00, |
| 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B }, |
| { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5, |
| 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F }, |
| { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55, |
| 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A } |
| }; |
| |
| /* |
| * Checkup routine |
| */ |
| int mbedtls_md5_self_test(int verbose) |
| { |
| int i, ret = 0; |
| unsigned char md5sum[16]; |
| |
| for (i = 0; i < 7; i++) { |
| if (verbose != 0) { |
| mbedtls_printf(" MD5 test #%d: ", i + 1); |
| } |
| |
| ret = mbedtls_md5(md5_test_buf[i], md5_test_buflen[i], md5sum); |
| if (ret != 0) { |
| goto fail; |
| } |
| |
| if (memcmp(md5sum, md5_test_sum[i], 16) != 0) { |
| ret = 1; |
| goto fail; |
| } |
| |
| if (verbose != 0) { |
| mbedtls_printf("passed\n"); |
| } |
| } |
| |
| if (verbose != 0) { |
| mbedtls_printf("\n"); |
| } |
| |
| return 0; |
| |
| fail: |
| if (verbose != 0) { |
| mbedtls_printf("failed\n"); |
| } |
| |
| return ret; |
| } |
| |
| #endif /* MBEDTLS_SELF_TEST */ |
| |
| #endif /* MBEDTLS_MD5_C */ |