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https://github.com/Next-Flip/Momentum-Firmware.git
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331 lines
9.4 KiB
C
331 lines
9.4 KiB
C
/*
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* RIPE MD-160 implementation
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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/*
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* The RIPEMD-160 algorithm was designed by RIPE in 1996
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* http://homes.esat.kuleuven.be/~bosselae/ripemd160.html
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* http://ehash.iaik.tugraz.at/wiki/RIPEMD-160
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*/
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#include <string.h>
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#include "ripemd160.h"
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#include "memzero.h"
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/*
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* 32-bit integer manipulation macros (little endian)
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*/
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#ifndef GET_UINT32_LE
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#define GET_UINT32_LE(n, b, i) \
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{ \
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(n) = ((uint32_t)(b)[(i)]) | ((uint32_t)(b)[(i) + 1] << 8) | \
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((uint32_t)(b)[(i) + 2] << 16) | ((uint32_t)(b)[(i) + 3] << 24); \
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}
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#endif
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#ifndef PUT_UINT32_LE
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#define PUT_UINT32_LE(n, b, i) \
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{ \
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(b)[(i)] = (uint8_t)(((n)) & 0xFF); \
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(b)[(i) + 1] = (uint8_t)(((n) >> 8) & 0xFF); \
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(b)[(i) + 2] = (uint8_t)(((n) >> 16) & 0xFF); \
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(b)[(i) + 3] = (uint8_t)(((n) >> 24) & 0xFF); \
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}
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#endif
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/*
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* RIPEMD-160 context setup
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*/
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void ripemd160_Init(RIPEMD160_CTX* ctx) {
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memzero(ctx, sizeof(RIPEMD160_CTX));
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ctx->total[0] = 0;
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ctx->total[1] = 0;
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ctx->state[0] = 0x67452301;
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ctx->state[1] = 0xEFCDAB89;
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ctx->state[2] = 0x98BADCFE;
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ctx->state[3] = 0x10325476;
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ctx->state[4] = 0xC3D2E1F0;
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}
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#if !defined(MBEDTLS_RIPEMD160_PROCESS_ALT)
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/*
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* Process one block
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*/
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void ripemd160_process(RIPEMD160_CTX* ctx, const uint8_t data[RIPEMD160_BLOCK_LENGTH]) {
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uint32_t A = 0, B = 0, C = 0, D = 0, E = 0, Ap = 0, Bp = 0, Cp = 0, Dp = 0, Ep = 0,
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X[16] = {0};
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GET_UINT32_LE(X[0], data, 0);
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GET_UINT32_LE(X[1], data, 4);
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GET_UINT32_LE(X[2], data, 8);
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GET_UINT32_LE(X[3], data, 12);
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GET_UINT32_LE(X[4], data, 16);
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GET_UINT32_LE(X[5], data, 20);
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GET_UINT32_LE(X[6], data, 24);
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GET_UINT32_LE(X[7], data, 28);
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GET_UINT32_LE(X[8], data, 32);
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GET_UINT32_LE(X[9], data, 36);
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GET_UINT32_LE(X[10], data, 40);
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GET_UINT32_LE(X[11], data, 44);
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GET_UINT32_LE(X[12], data, 48);
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GET_UINT32_LE(X[13], data, 52);
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GET_UINT32_LE(X[14], data, 56);
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GET_UINT32_LE(X[15], data, 60);
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A = Ap = ctx->state[0];
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B = Bp = ctx->state[1];
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C = Cp = ctx->state[2];
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D = Dp = ctx->state[3];
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E = Ep = ctx->state[4];
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#define F1(x, y, z) (x ^ y ^ z)
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#define F2(x, y, z) ((x & y) | (~x & z))
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#define F3(x, y, z) ((x | ~y) ^ z)
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#define F4(x, y, z) ((x & z) | (y & ~z))
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#define F5(x, y, z) (x ^ (y | ~z))
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#define S(x, n) ((x << n) | (x >> (32 - n)))
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#define P(a, b, c, d, e, r, s, f, k) \
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a += f(b, c, d) + X[r] + k; \
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a = S(a, s) + e; \
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c = S(c, 10);
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#define P2(a, b, c, d, e, r, s, rp, sp) \
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P(a, b, c, d, e, r, s, F, K); \
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P(a##p, b##p, c##p, d##p, e##p, rp, sp, Fp, Kp);
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#define F F1
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#define K 0x00000000
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#define Fp F5
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#define Kp 0x50A28BE6
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P2(A, B, C, D, E, 0, 11, 5, 8);
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P2(E, A, B, C, D, 1, 14, 14, 9);
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P2(D, E, A, B, C, 2, 15, 7, 9);
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P2(C, D, E, A, B, 3, 12, 0, 11);
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P2(B, C, D, E, A, 4, 5, 9, 13);
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P2(A, B, C, D, E, 5, 8, 2, 15);
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P2(E, A, B, C, D, 6, 7, 11, 15);
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P2(D, E, A, B, C, 7, 9, 4, 5);
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P2(C, D, E, A, B, 8, 11, 13, 7);
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P2(B, C, D, E, A, 9, 13, 6, 7);
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P2(A, B, C, D, E, 10, 14, 15, 8);
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P2(E, A, B, C, D, 11, 15, 8, 11);
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P2(D, E, A, B, C, 12, 6, 1, 14);
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P2(C, D, E, A, B, 13, 7, 10, 14);
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P2(B, C, D, E, A, 14, 9, 3, 12);
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P2(A, B, C, D, E, 15, 8, 12, 6);
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#undef F
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#undef K
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#undef Fp
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#undef Kp
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#define F F2
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#define K 0x5A827999
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#define Fp F4
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#define Kp 0x5C4DD124
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P2(E, A, B, C, D, 7, 7, 6, 9);
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P2(D, E, A, B, C, 4, 6, 11, 13);
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P2(C, D, E, A, B, 13, 8, 3, 15);
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P2(B, C, D, E, A, 1, 13, 7, 7);
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P2(A, B, C, D, E, 10, 11, 0, 12);
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P2(E, A, B, C, D, 6, 9, 13, 8);
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P2(D, E, A, B, C, 15, 7, 5, 9);
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P2(C, D, E, A, B, 3, 15, 10, 11);
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P2(B, C, D, E, A, 12, 7, 14, 7);
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P2(A, B, C, D, E, 0, 12, 15, 7);
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P2(E, A, B, C, D, 9, 15, 8, 12);
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P2(D, E, A, B, C, 5, 9, 12, 7);
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P2(C, D, E, A, B, 2, 11, 4, 6);
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P2(B, C, D, E, A, 14, 7, 9, 15);
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P2(A, B, C, D, E, 11, 13, 1, 13);
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P2(E, A, B, C, D, 8, 12, 2, 11);
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#undef F
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#undef K
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#undef Fp
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#undef Kp
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#define F F3
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#define K 0x6ED9EBA1
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#define Fp F3
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#define Kp 0x6D703EF3
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P2(D, E, A, B, C, 3, 11, 15, 9);
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P2(C, D, E, A, B, 10, 13, 5, 7);
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P2(B, C, D, E, A, 14, 6, 1, 15);
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P2(A, B, C, D, E, 4, 7, 3, 11);
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P2(E, A, B, C, D, 9, 14, 7, 8);
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P2(D, E, A, B, C, 15, 9, 14, 6);
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P2(C, D, E, A, B, 8, 13, 6, 6);
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P2(B, C, D, E, A, 1, 15, 9, 14);
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P2(A, B, C, D, E, 2, 14, 11, 12);
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P2(E, A, B, C, D, 7, 8, 8, 13);
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P2(D, E, A, B, C, 0, 13, 12, 5);
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P2(C, D, E, A, B, 6, 6, 2, 14);
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P2(B, C, D, E, A, 13, 5, 10, 13);
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P2(A, B, C, D, E, 11, 12, 0, 13);
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P2(E, A, B, C, D, 5, 7, 4, 7);
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P2(D, E, A, B, C, 12, 5, 13, 5);
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#undef F
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#undef K
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#undef Fp
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#undef Kp
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#define F F4
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#define K 0x8F1BBCDC
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#define Fp F2
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#define Kp 0x7A6D76E9
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P2(C, D, E, A, B, 1, 11, 8, 15);
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P2(B, C, D, E, A, 9, 12, 6, 5);
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P2(A, B, C, D, E, 11, 14, 4, 8);
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P2(E, A, B, C, D, 10, 15, 1, 11);
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P2(D, E, A, B, C, 0, 14, 3, 14);
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P2(C, D, E, A, B, 8, 15, 11, 14);
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P2(B, C, D, E, A, 12, 9, 15, 6);
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P2(A, B, C, D, E, 4, 8, 0, 14);
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P2(E, A, B, C, D, 13, 9, 5, 6);
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P2(D, E, A, B, C, 3, 14, 12, 9);
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P2(C, D, E, A, B, 7, 5, 2, 12);
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P2(B, C, D, E, A, 15, 6, 13, 9);
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P2(A, B, C, D, E, 14, 8, 9, 12);
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P2(E, A, B, C, D, 5, 6, 7, 5);
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P2(D, E, A, B, C, 6, 5, 10, 15);
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P2(C, D, E, A, B, 2, 12, 14, 8);
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#undef F
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#undef K
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#undef Fp
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#undef Kp
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#define F F5
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#define K 0xA953FD4E
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#define Fp F1
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#define Kp 0x00000000
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P2(B, C, D, E, A, 4, 9, 12, 8);
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P2(A, B, C, D, E, 0, 15, 15, 5);
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P2(E, A, B, C, D, 5, 5, 10, 12);
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P2(D, E, A, B, C, 9, 11, 4, 9);
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P2(C, D, E, A, B, 7, 6, 1, 12);
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P2(B, C, D, E, A, 12, 8, 5, 5);
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P2(A, B, C, D, E, 2, 13, 8, 14);
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P2(E, A, B, C, D, 10, 12, 7, 6);
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P2(D, E, A, B, C, 14, 5, 6, 8);
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P2(C, D, E, A, B, 1, 12, 2, 13);
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P2(B, C, D, E, A, 3, 13, 13, 6);
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P2(A, B, C, D, E, 8, 14, 14, 5);
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P2(E, A, B, C, D, 11, 11, 0, 15);
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P2(D, E, A, B, C, 6, 8, 3, 13);
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P2(C, D, E, A, B, 15, 5, 9, 11);
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P2(B, C, D, E, A, 13, 6, 11, 11);
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#undef F
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#undef K
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#undef Fp
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#undef Kp
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C = ctx->state[1] + C + Dp;
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ctx->state[1] = ctx->state[2] + D + Ep;
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ctx->state[2] = ctx->state[3] + E + Ap;
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ctx->state[3] = ctx->state[4] + A + Bp;
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ctx->state[4] = ctx->state[0] + B + Cp;
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ctx->state[0] = C;
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}
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#endif /* !MBEDTLS_RIPEMD160_PROCESS_ALT */
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/*
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* RIPEMD-160 process buffer
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*/
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void ripemd160_Update(RIPEMD160_CTX* ctx, const uint8_t* input, uint32_t ilen) {
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uint32_t fill = 0;
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uint32_t left = 0;
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if(ilen == 0) return;
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left = ctx->total[0] & 0x3F;
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fill = RIPEMD160_BLOCK_LENGTH - left;
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ctx->total[0] += (uint32_t)ilen;
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ctx->total[0] &= 0xFFFFFFFF;
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if(ctx->total[0] < (uint32_t)ilen) ctx->total[1]++;
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if(left && ilen >= fill) {
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memcpy((void*)(ctx->buffer + left), input, fill);
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ripemd160_process(ctx, ctx->buffer);
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input += fill;
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ilen -= fill;
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left = 0;
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}
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while(ilen >= RIPEMD160_BLOCK_LENGTH) {
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ripemd160_process(ctx, input);
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input += RIPEMD160_BLOCK_LENGTH;
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ilen -= RIPEMD160_BLOCK_LENGTH;
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}
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if(ilen > 0) {
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memcpy((void*)(ctx->buffer + left), input, ilen);
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}
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}
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static const uint8_t ripemd160_padding[RIPEMD160_BLOCK_LENGTH] = {
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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/*
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* RIPEMD-160 final digest
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*/
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void ripemd160_Final(RIPEMD160_CTX* ctx, uint8_t output[RIPEMD160_DIGEST_LENGTH]) {
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uint32_t last = 0;
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uint32_t padn = 0;
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uint32_t high = 0;
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uint32_t low = 0;
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uint8_t msglen[8] = {0};
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high = (ctx->total[0] >> 29) | (ctx->total[1] << 3);
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low = (ctx->total[0] << 3);
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PUT_UINT32_LE(low, msglen, 0);
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PUT_UINT32_LE(high, msglen, 4);
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last = ctx->total[0] & 0x3F;
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padn = (last < 56) ? (56 - last) : (120 - last);
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ripemd160_Update(ctx, ripemd160_padding, padn);
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ripemd160_Update(ctx, msglen, 8);
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PUT_UINT32_LE(ctx->state[0], output, 0);
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PUT_UINT32_LE(ctx->state[1], output, 4);
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PUT_UINT32_LE(ctx->state[2], output, 8);
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PUT_UINT32_LE(ctx->state[3], output, 12);
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PUT_UINT32_LE(ctx->state[4], output, 16);
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memzero(ctx, sizeof(RIPEMD160_CTX));
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}
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/*
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* output = RIPEMD-160( input buffer )
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*/
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void ripemd160(const uint8_t* msg, uint32_t msg_len, uint8_t hash[RIPEMD160_DIGEST_LENGTH]) {
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RIPEMD160_CTX ctx = {0};
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ripemd160_Init(&ctx);
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ripemd160_Update(&ctx, msg, msg_len);
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ripemd160_Final(&ctx, hash);
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}
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