/* * RIPE MD-160 implementation * * Copyright The Mbed TLS Contributors * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * The RIPEMD-160 algorithm was designed by RIPE in 1996 * http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html * http://ehash.iaik.tugraz.at/wiki/RIPEMD-160 */ #include "common.h" #if defined(MBEDTLS_RIPEMD160_C) #include "mbedtls/ripemd160.h" #include "mbedtls/platform_util.h" #include "mbedtls/error.h" #include <string.h> #include "mbedtls/platform.h" #if !defined(MBEDTLS_RIPEMD160_ALT) void mbedtls_ripemd160_init(mbedtls_ripemd160_context *ctx) { memset(ctx, 0, sizeof(mbedtls_ripemd160_context)); } void mbedtls_ripemd160_free(mbedtls_ripemd160_context *ctx) { if (ctx == NULL) { return; } mbedtls_platform_zeroize(ctx, sizeof(mbedtls_ripemd160_context)); } void mbedtls_ripemd160_clone(mbedtls_ripemd160_context *dst, const mbedtls_ripemd160_context *src) { *dst = *src; } /* * RIPEMD-160 context setup */ int mbedtls_ripemd160_starts(mbedtls_ripemd160_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; ctx->state[4] = 0xC3D2E1F0; return 0; } #if !defined(MBEDTLS_RIPEMD160_PROCESS_ALT) /* * Process one block */ int mbedtls_internal_ripemd160_process(mbedtls_ripemd160_context *ctx, const unsigned char data[64]) { struct { uint32_t A, B, C, D, E, Ap, Bp, Cp, Dp, Ep, X[16]; } 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); local.A = local.Ap = ctx->state[0]; local.B = local.Bp = ctx->state[1]; local.C = local.Cp = ctx->state[2]; local.D = local.Dp = ctx->state[3]; local.E = local.Ep = ctx->state[4]; #define F1(x, y, z) ((x) ^ (y) ^ (z)) #define F2(x, y, z) (((x) & (y)) | (~(x) & (z))) #define F3(x, y, z) (((x) | ~(y)) ^ (z)) #define F4(x, y, z) (((x) & (z)) | ((y) & ~(z))) #define F5(x, y, z) ((x) ^ ((y) | ~(z))) #define S(x, n) (((x) << (n)) | ((x) >> (32 - (n)))) #define P(a, b, c, d, e, r, s, f, k) \ do \ { \ (a) += f((b), (c), (d)) + local.X[r] + (k); \ (a) = S((a), (s)) + (e); \ (c) = S((c), 10); \ } while (0) #define P2(a, b, c, d, e, r, s, rp, sp) \ do \ { \ P((a), (b), (c), (d), (e), (r), (s), F, K); \ P(a ## p, b ## p, c ## p, d ## p, e ## p, \ (rp), (sp), Fp, Kp); \ } while (0) #define F F1 #define K 0x00000000 #define Fp F5 #define Kp 0x50A28BE6 P2(local.A, local.B, local.C, local.D, local.E, 0, 11, 5, 8); P2(local.E, local.A, local.B, local.C, local.D, 1, 14, 14, 9); P2(local.D, local.E, local.A, local.B, local.C, 2, 15, 7, 9); P2(local.C, local.D, local.E, local.A, local.B, 3, 12, 0, 11); P2(local.B, local.C, local.D, local.E, local.A, 4, 5, 9, 13); P2(local.A, local.B, local.C, local.D, local.E, 5, 8, 2, 15); P2(local.E, local.A, local.B, local.C, local.D, 6, 7, 11, 15); P2(local.D, local.E, local.A, local.B, local.C, 7, 9, 4, 5); P2(local.C, local.D, local.E, local.A, local.B, 8, 11, 13, 7); P2(local.B, local.C, local.D, local.E, local.A, 9, 13, 6, 7); P2(local.A, local.B, local.C, local.D, local.E, 10, 14, 15, 8); P2(local.E, local.A, local.B, local.C, local.D, 11, 15, 8, 11); P2(local.D, local.E, local.A, local.B, local.C, 12, 6, 1, 14); P2(local.C, local.D, local.E, local.A, local.B, 13, 7, 10, 14); P2(local.B, local.C, local.D, local.E, local.A, 14, 9, 3, 12); P2(local.A, local.B, local.C, local.D, local.E, 15, 8, 12, 6); #undef F #undef K #undef Fp #undef Kp #define F F2 #define K 0x5A827999 #define Fp F4 #define Kp 0x5C4DD124 P2(local.E, local.A, local.B, local.C, local.D, 7, 7, 6, 9); P2(local.D, local.E, local.A, local.B, local.C, 4, 6, 11, 13); P2(local.C, local.D, local.E, local.A, local.B, 13, 8, 3, 15); P2(local.B, local.C, local.D, local.E, local.A, 1, 13, 7, 7); P2(local.A, local.B, local.C, local.D, local.E, 10, 11, 0, 12); P2(local.E, local.A, local.B, local.C, local.D, 6, 9, 13, 8); P2(local.D, local.E, local.A, local.B, local.C, 15, 7, 5, 9); P2(local.C, local.D, local.E, local.A, local.B, 3, 15, 10, 11); P2(local.B, local.C, local.D, local.E, local.A, 12, 7, 14, 7); P2(local.A, local.B, local.C, local.D, local.E, 0, 12, 15, 7); P2(local.E, local.A, local.B, local.C, local.D, 9, 15, 8, 12); P2(local.D, local.E, local.A, local.B, local.C, 5, 9, 12, 7); P2(local.C, local.D, local.E, local.A, local.B, 2, 11, 4, 6); P2(local.B, local.C, local.D, local.E, local.A, 14, 7, 9, 15); P2(local.A, local.B, local.C, local.D, local.E, 11, 13, 1, 13); P2(local.E, local.A, local.B, local.C, local.D, 8, 12, 2, 11); #undef F #undef K #undef Fp #undef Kp #define F F3 #define K 0x6ED9EBA1 #define Fp F3 #define Kp 0x6D703EF3 P2(local.D, local.E, local.A, local.B, local.C, 3, 11, 15, 9); P2(local.C, local.D, local.E, local.A, local.B, 10, 13, 5, 7); P2(local.B, local.C, local.D, local.E, local.A, 14, 6, 1, 15); P2(local.A, local.B, local.C, local.D, local.E, 4, 7, 3, 11); P2(local.E, local.A, local.B, local.C, local.D, 9, 14, 7, 8); P2(local.D, local.E, local.A, local.B, local.C, 15, 9, 14, 6); P2(local.C, local.D, local.E, local.A, local.B, 8, 13, 6, 6); P2(local.B, local.C, local.D, local.E, local.A, 1, 15, 9, 14); P2(local.A, local.B, local.C, local.D, local.E, 2, 14, 11, 12); P2(local.E, local.A, local.B, local.C, local.D, 7, 8, 8, 13); P2(local.D, local.E, local.A, local.B, local.C, 0, 13, 12, 5); P2(local.C, local.D, local.E, local.A, local.B, 6, 6, 2, 14); P2(local.B, local.C, local.D, local.E, local.A, 13, 5, 10, 13); P2(local.A, local.B, local.C, local.D, local.E, 11, 12, 0, 13); P2(local.E, local.A, local.B, local.C, local.D, 5, 7, 4, 7); P2(local.D, local.E, local.A, local.B, local.C, 12, 5, 13, 5); #undef F #undef K #undef Fp #undef Kp #define F F4 #define K 0x8F1BBCDC #define Fp F2 #define Kp 0x7A6D76E9 P2(local.C, local.D, local.E, local.A, local.B, 1, 11, 8, 15); P2(local.B, local.C, local.D, local.E, local.A, 9, 12, 6, 5); P2(local.A, local.B, local.C, local.D, local.E, 11, 14, 4, 8); P2(local.E, local.A, local.B, local.C, local.D, 10, 15, 1, 11); P2(local.D, local.E, local.A, local.B, local.C, 0, 14, 3, 14); P2(local.C, local.D, local.E, local.A, local.B, 8, 15, 11, 14); P2(local.B, local.C, local.D, local.E, local.A, 12, 9, 15, 6); P2(local.A, local.B, local.C, local.D, local.E, 4, 8, 0, 14); P2(local.E, local.A, local.B, local.C, local.D, 13, 9, 5, 6); P2(local.D, local.E, local.A, local.B, local.C, 3, 14, 12, 9); P2(local.C, local.D, local.E, local.A, local.B, 7, 5, 2, 12); P2(local.B, local.C, local.D, local.E, local.A, 15, 6, 13, 9); P2(local.A, local.B, local.C, local.D, local.E, 14, 8, 9, 12); P2(local.E, local.A, local.B, local.C, local.D, 5, 6, 7, 5); P2(local.D, local.E, local.A, local.B, local.C, 6, 5, 10, 15); P2(local.C, local.D, local.E, local.A, local.B, 2, 12, 14, 8); #undef F #undef K #undef Fp #undef Kp #define F F5 #define K 0xA953FD4E #define Fp F1 #define Kp 0x00000000 P2(local.B, local.C, local.D, local.E, local.A, 4, 9, 12, 8); P2(local.A, local.B, local.C, local.D, local.E, 0, 15, 15, 5); P2(local.E, local.A, local.B, local.C, local.D, 5, 5, 10, 12); P2(local.D, local.E, local.A, local.B, local.C, 9, 11, 4, 9); P2(local.C, local.D, local.E, local.A, local.B, 7, 6, 1, 12); P2(local.B, local.C, local.D, local.E, local.A, 12, 8, 5, 5); P2(local.A, local.B, local.C, local.D, local.E, 2, 13, 8, 14); P2(local.E, local.A, local.B, local.C, local.D, 10, 12, 7, 6); P2(local.D, local.E, local.A, local.B, local.C, 14, 5, 6, 8); P2(local.C, local.D, local.E, local.A, local.B, 1, 12, 2, 13); P2(local.B, local.C, local.D, local.E, local.A, 3, 13, 13, 6); P2(local.A, local.B, local.C, local.D, local.E, 8, 14, 14, 5); P2(local.E, local.A, local.B, local.C, local.D, 11, 11, 0, 15); P2(local.D, local.E, local.A, local.B, local.C, 6, 8, 3, 13); P2(local.C, local.D, local.E, local.A, local.B, 15, 5, 9, 11); P2(local.B, local.C, local.D, local.E, local.A, 13, 6, 11, 11); #undef F #undef K #undef Fp #undef Kp local.C = ctx->state[1] + local.C + local.Dp; ctx->state[1] = ctx->state[2] + local.D + local.Ep; ctx->state[2] = ctx->state[3] + local.E + local.Ap; ctx->state[3] = ctx->state[4] + local.A + local.Bp; ctx->state[4] = ctx->state[0] + local.B + local.Cp; ctx->state[0] = local.C; /* Zeroise variables to clear sensitive data from memory. */ mbedtls_platform_zeroize(&local, sizeof(local)); return 0; } #endif /* !MBEDTLS_RIPEMD160_PROCESS_ALT */ /* * RIPEMD-160 process buffer */ int mbedtls_ripemd160_update(mbedtls_ripemd160_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_ripemd160_process(ctx, ctx->buffer)) != 0) { return ret; } input += fill; ilen -= fill; left = 0; } while (ilen >= 64) { if ((ret = mbedtls_internal_ripemd160_process(ctx, input)) != 0) { return ret; } input += 64; ilen -= 64; } if (ilen > 0) { memcpy((void *) (ctx->buffer + left), input, ilen); } return 0; } static const unsigned char ripemd160_padding[64] = { 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; /* * RIPEMD-160 final digest */ int mbedtls_ripemd160_finish(mbedtls_ripemd160_context *ctx, unsigned char output[20]) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; uint32_t last, padn; uint32_t high, low; unsigned char msglen[8]; high = (ctx->total[0] >> 29) | (ctx->total[1] << 3); low = (ctx->total[0] << 3); MBEDTLS_PUT_UINT32_LE(low, msglen, 0); MBEDTLS_PUT_UINT32_LE(high, msglen, 4); last = ctx->total[0] & 0x3F; padn = (last < 56) ? (56 - last) : (120 - last); ret = mbedtls_ripemd160_update(ctx, ripemd160_padding, padn); if (ret != 0) { return ret; } ret = mbedtls_ripemd160_update(ctx, msglen, 8); if (ret != 0) { return ret; } 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); MBEDTLS_PUT_UINT32_LE(ctx->state[4], output, 16); return 0; } #endif /* ! MBEDTLS_RIPEMD160_ALT */ /* * output = RIPEMD-160( input buffer ) */ int mbedtls_ripemd160(const unsigned char *input, size_t ilen, unsigned char output[20]) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; mbedtls_ripemd160_context ctx; mbedtls_ripemd160_init(&ctx); if ((ret = mbedtls_ripemd160_starts(&ctx)) != 0) { goto exit; } if ((ret = mbedtls_ripemd160_update(&ctx, input, ilen)) != 0) { goto exit; } if ((ret = mbedtls_ripemd160_finish(&ctx, output)) != 0) { goto exit; } exit: mbedtls_ripemd160_free(&ctx); return ret; } #if defined(MBEDTLS_SELF_TEST) /* * Test vectors from the RIPEMD-160 paper and * http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html#HMAC */ #define TESTS 8 static const unsigned char ripemd160_test_str[TESTS][81] = { { "" }, { "a" }, { "abc" }, { "message digest" }, { "abcdefghijklmnopqrstuvwxyz" }, { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, { "12345678901234567890123456789012345678901234567890123456789012345678901234567890" }, }; static const size_t ripemd160_test_strlen[TESTS] = { 0, 1, 3, 14, 26, 56, 62, 80 }; static const unsigned char ripemd160_test_md[TESTS][20] = { { 0x9c, 0x11, 0x85, 0xa5, 0xc5, 0xe9, 0xfc, 0x54, 0x61, 0x28, 0x08, 0x97, 0x7e, 0xe8, 0xf5, 0x48, 0xb2, 0x25, 0x8d, 0x31 }, { 0x0b, 0xdc, 0x9d, 0x2d, 0x25, 0x6b, 0x3e, 0xe9, 0xda, 0xae, 0x34, 0x7b, 0xe6, 0xf4, 0xdc, 0x83, 0x5a, 0x46, 0x7f, 0xfe }, { 0x8e, 0xb2, 0x08, 0xf7, 0xe0, 0x5d, 0x98, 0x7a, 0x9b, 0x04, 0x4a, 0x8e, 0x98, 0xc6, 0xb0, 0x87, 0xf1, 0x5a, 0x0b, 0xfc }, { 0x5d, 0x06, 0x89, 0xef, 0x49, 0xd2, 0xfa, 0xe5, 0x72, 0xb8, 0x81, 0xb1, 0x23, 0xa8, 0x5f, 0xfa, 0x21, 0x59, 0x5f, 0x36 }, { 0xf7, 0x1c, 0x27, 0x10, 0x9c, 0x69, 0x2c, 0x1b, 0x56, 0xbb, 0xdc, 0xeb, 0x5b, 0x9d, 0x28, 0x65, 0xb3, 0x70, 0x8d, 0xbc }, { 0x12, 0xa0, 0x53, 0x38, 0x4a, 0x9c, 0x0c, 0x88, 0xe4, 0x05, 0xa0, 0x6c, 0x27, 0xdc, 0xf4, 0x9a, 0xda, 0x62, 0xeb, 0x2b }, { 0xb0, 0xe2, 0x0b, 0x6e, 0x31, 0x16, 0x64, 0x02, 0x86, 0xed, 0x3a, 0x87, 0xa5, 0x71, 0x30, 0x79, 0xb2, 0x1f, 0x51, 0x89 }, { 0x9b, 0x75, 0x2e, 0x45, 0x57, 0x3d, 0x4b, 0x39, 0xf4, 0xdb, 0xd3, 0x32, 0x3c, 0xab, 0x82, 0xbf, 0x63, 0x32, 0x6b, 0xfb }, }; /* * Checkup routine */ int mbedtls_ripemd160_self_test(int verbose) { int i, ret = 0; unsigned char output[20]; memset(output, 0, sizeof(output)); for (i = 0; i < TESTS; i++) { if (verbose != 0) { mbedtls_printf(" RIPEMD-160 test #%d: ", i + 1); } ret = mbedtls_ripemd160(ripemd160_test_str[i], ripemd160_test_strlen[i], output); if (ret != 0) { goto fail; } if (memcmp(output, ripemd160_test_md[i], 20) != 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_RIPEMD160_C */