mirror of
https://github.com/Relintai/pandemonium_engine_minimal.git
synced 2024-11-10 20:12:10 +01:00
464 lines
13 KiB
C
464 lines
13 KiB
C
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/*
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* RFC 1186/1320 compliant MD4 implementation
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*
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* Copyright The Mbed TLS Contributors
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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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/*
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* The MD4 algorithm was designed by Ron Rivest in 1990.
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*
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* http://www.ietf.org/rfc/rfc1186.txt
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* http://www.ietf.org/rfc/rfc1320.txt
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*/
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#include "common.h"
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#if defined(MBEDTLS_MD4_C)
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#include "mbedtls/md4.h"
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#include "mbedtls/platform_util.h"
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#include "mbedtls/error.h"
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#include <string.h>
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#include "mbedtls/platform.h"
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#if !defined(MBEDTLS_MD4_ALT)
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void mbedtls_md4_init(mbedtls_md4_context *ctx)
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{
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memset(ctx, 0, sizeof(mbedtls_md4_context));
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}
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void mbedtls_md4_free(mbedtls_md4_context *ctx)
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{
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if (ctx == NULL) {
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return;
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}
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mbedtls_platform_zeroize(ctx, sizeof(mbedtls_md4_context));
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}
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void mbedtls_md4_clone(mbedtls_md4_context *dst,
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const mbedtls_md4_context *src)
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{
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*dst = *src;
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}
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/*
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* MD4 context setup
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*/
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int mbedtls_md4_starts_ret(mbedtls_md4_context *ctx)
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{
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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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return 0;
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md4_starts(mbedtls_md4_context *ctx)
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{
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mbedtls_md4_starts_ret(ctx);
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}
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#endif
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#if !defined(MBEDTLS_MD4_PROCESS_ALT)
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int mbedtls_internal_md4_process(mbedtls_md4_context *ctx,
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const unsigned char data[64])
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{
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struct {
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uint32_t X[16], A, B, C, D;
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} local;
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local.X[0] = MBEDTLS_GET_UINT32_LE(data, 0);
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local.X[1] = MBEDTLS_GET_UINT32_LE(data, 4);
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local.X[2] = MBEDTLS_GET_UINT32_LE(data, 8);
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local.X[3] = MBEDTLS_GET_UINT32_LE(data, 12);
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local.X[4] = MBEDTLS_GET_UINT32_LE(data, 16);
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local.X[5] = MBEDTLS_GET_UINT32_LE(data, 20);
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local.X[6] = MBEDTLS_GET_UINT32_LE(data, 24);
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local.X[7] = MBEDTLS_GET_UINT32_LE(data, 28);
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local.X[8] = MBEDTLS_GET_UINT32_LE(data, 32);
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local.X[9] = MBEDTLS_GET_UINT32_LE(data, 36);
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local.X[10] = MBEDTLS_GET_UINT32_LE(data, 40);
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local.X[11] = MBEDTLS_GET_UINT32_LE(data, 44);
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local.X[12] = MBEDTLS_GET_UINT32_LE(data, 48);
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local.X[13] = MBEDTLS_GET_UINT32_LE(data, 52);
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local.X[14] = MBEDTLS_GET_UINT32_LE(data, 56);
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local.X[15] = MBEDTLS_GET_UINT32_LE(data, 60);
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#define S(x, n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
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local.A = ctx->state[0];
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local.B = ctx->state[1];
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local.C = ctx->state[2];
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local.D = ctx->state[3];
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#define F(x, y, z) (((x) & (y)) | ((~(x)) & (z)))
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#define P(a, b, c, d, x, s) \
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do \
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{ \
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(a) += F((b), (c), (d)) + (x); \
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(a) = S((a), (s)); \
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} while (0)
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P(local.A, local.B, local.C, local.D, local.X[0], 3);
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P(local.D, local.A, local.B, local.C, local.X[1], 7);
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P(local.C, local.D, local.A, local.B, local.X[2], 11);
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P(local.B, local.C, local.D, local.A, local.X[3], 19);
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P(local.A, local.B, local.C, local.D, local.X[4], 3);
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P(local.D, local.A, local.B, local.C, local.X[5], 7);
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P(local.C, local.D, local.A, local.B, local.X[6], 11);
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P(local.B, local.C, local.D, local.A, local.X[7], 19);
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P(local.A, local.B, local.C, local.D, local.X[8], 3);
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P(local.D, local.A, local.B, local.C, local.X[9], 7);
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P(local.C, local.D, local.A, local.B, local.X[10], 11);
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P(local.B, local.C, local.D, local.A, local.X[11], 19);
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P(local.A, local.B, local.C, local.D, local.X[12], 3);
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P(local.D, local.A, local.B, local.C, local.X[13], 7);
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P(local.C, local.D, local.A, local.B, local.X[14], 11);
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P(local.B, local.C, local.D, local.A, local.X[15], 19);
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#undef P
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#undef F
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#define F(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
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#define P(a, b, c, d, x, s) \
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do \
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{ \
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(a) += F((b), (c), (d)) + (x) + 0x5A827999; \
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(a) = S((a), (s)); \
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} while (0)
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P(local.A, local.B, local.C, local.D, local.X[0], 3);
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P(local.D, local.A, local.B, local.C, local.X[4], 5);
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P(local.C, local.D, local.A, local.B, local.X[8], 9);
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P(local.B, local.C, local.D, local.A, local.X[12], 13);
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P(local.A, local.B, local.C, local.D, local.X[1], 3);
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P(local.D, local.A, local.B, local.C, local.X[5], 5);
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P(local.C, local.D, local.A, local.B, local.X[9], 9);
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P(local.B, local.C, local.D, local.A, local.X[13], 13);
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P(local.A, local.B, local.C, local.D, local.X[2], 3);
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P(local.D, local.A, local.B, local.C, local.X[6], 5);
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P(local.C, local.D, local.A, local.B, local.X[10], 9);
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P(local.B, local.C, local.D, local.A, local.X[14], 13);
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P(local.A, local.B, local.C, local.D, local.X[3], 3);
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P(local.D, local.A, local.B, local.C, local.X[7], 5);
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P(local.C, local.D, local.A, local.B, local.X[11], 9);
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P(local.B, local.C, local.D, local.A, local.X[15], 13);
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#undef P
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#undef F
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#define F(x, y, z) ((x) ^ (y) ^ (z))
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#define P(a, b, c, d, x, s) \
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do \
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{ \
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(a) += F((b), (c), (d)) + (x) + 0x6ED9EBA1; \
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(a) = S((a), (s)); \
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} while (0)
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P(local.A, local.B, local.C, local.D, local.X[0], 3);
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P(local.D, local.A, local.B, local.C, local.X[8], 9);
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P(local.C, local.D, local.A, local.B, local.X[4], 11);
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P(local.B, local.C, local.D, local.A, local.X[12], 15);
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P(local.A, local.B, local.C, local.D, local.X[2], 3);
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P(local.D, local.A, local.B, local.C, local.X[10], 9);
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P(local.C, local.D, local.A, local.B, local.X[6], 11);
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P(local.B, local.C, local.D, local.A, local.X[14], 15);
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P(local.A, local.B, local.C, local.D, local.X[1], 3);
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P(local.D, local.A, local.B, local.C, local.X[9], 9);
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P(local.C, local.D, local.A, local.B, local.X[5], 11);
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P(local.B, local.C, local.D, local.A, local.X[13], 15);
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P(local.A, local.B, local.C, local.D, local.X[3], 3);
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P(local.D, local.A, local.B, local.C, local.X[11], 9);
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P(local.C, local.D, local.A, local.B, local.X[7], 11);
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P(local.B, local.C, local.D, local.A, local.X[15], 15);
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#undef F
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#undef P
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ctx->state[0] += local.A;
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ctx->state[1] += local.B;
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ctx->state[2] += local.C;
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ctx->state[3] += local.D;
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/* Zeroise variables to clear sensitive data from memory. */
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mbedtls_platform_zeroize(&local, sizeof(local));
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return 0;
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md4_process(mbedtls_md4_context *ctx,
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const unsigned char data[64])
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{
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mbedtls_internal_md4_process(ctx, data);
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}
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#endif
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#endif /* !MBEDTLS_MD4_PROCESS_ALT */
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/*
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* MD4 process buffer
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*/
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int mbedtls_md4_update_ret(mbedtls_md4_context *ctx,
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const unsigned char *input,
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size_t ilen)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t fill;
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uint32_t left;
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if (ilen == 0) {
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return 0;
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}
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left = ctx->total[0] & 0x3F;
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fill = 64 - 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) {
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ctx->total[1]++;
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}
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if (left && ilen >= fill) {
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memcpy((void *) (ctx->buffer + left),
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(void *) input, fill);
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if ((ret = mbedtls_internal_md4_process(ctx, ctx->buffer)) != 0) {
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return ret;
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}
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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 >= 64) {
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if ((ret = mbedtls_internal_md4_process(ctx, input)) != 0) {
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return ret;
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}
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input += 64;
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ilen -= 64;
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}
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if (ilen > 0) {
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memcpy((void *) (ctx->buffer + left),
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(void *) input, ilen);
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}
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return 0;
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md4_update(mbedtls_md4_context *ctx,
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const unsigned char *input,
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size_t ilen)
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{
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mbedtls_md4_update_ret(ctx, input, ilen);
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}
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#endif
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static const unsigned char md4_padding[64] =
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{
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0x80, 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,
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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
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};
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/*
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* MD4 final digest
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*/
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int mbedtls_md4_finish_ret(mbedtls_md4_context *ctx,
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unsigned char output[16])
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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uint32_t last, padn;
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uint32_t high, low;
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unsigned char msglen[8];
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high = (ctx->total[0] >> 29)
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| (ctx->total[1] << 3);
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low = (ctx->total[0] << 3);
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MBEDTLS_PUT_UINT32_LE(low, msglen, 0);
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MBEDTLS_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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ret = mbedtls_md4_update_ret(ctx, (unsigned char *) md4_padding, padn);
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if (ret != 0) {
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return ret;
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}
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if ((ret = mbedtls_md4_update_ret(ctx, msglen, 8)) != 0) {
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return ret;
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}
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MBEDTLS_PUT_UINT32_LE(ctx->state[0], output, 0);
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MBEDTLS_PUT_UINT32_LE(ctx->state[1], output, 4);
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MBEDTLS_PUT_UINT32_LE(ctx->state[2], output, 8);
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MBEDTLS_PUT_UINT32_LE(ctx->state[3], output, 12);
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return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
||
|
|
void mbedtls_md4_finish(mbedtls_md4_context *ctx,
|
||
|
|
unsigned char output[16])
|
||
|
|
{
|
||
|
|
mbedtls_md4_finish_ret(ctx, output);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* !MBEDTLS_MD4_ALT */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* output = MD4( input buffer )
|
||
|
|
*/
|
||
|
|
int mbedtls_md4_ret(const unsigned char *input,
|
||
|
|
size_t ilen,
|
||
|
|
unsigned char output[16])
|
||
|
|
{
|
||
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||
|
|
mbedtls_md4_context ctx;
|
||
|
|
|
||
|
|
mbedtls_md4_init(&ctx);
|
||
|
|
|
||
|
|
if ((ret = mbedtls_md4_starts_ret(&ctx)) != 0) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ret = mbedtls_md4_update_ret(&ctx, input, ilen)) != 0) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ret = mbedtls_md4_finish_ret(&ctx, output)) != 0) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
exit:
|
||
|
|
mbedtls_md4_free(&ctx);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
||
|
|
void mbedtls_md4(const unsigned char *input,
|
||
|
|
size_t ilen,
|
||
|
|
unsigned char output[16])
|
||
|
|
{
|
||
|
|
mbedtls_md4_ret(input, ilen, output);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(MBEDTLS_SELF_TEST)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* RFC 1320 test vectors
|
||
|
|
*/
|
||
|
|
static const unsigned char md4_test_str[7][81] =
|
||
|
|
{
|
||
|
|
{ "" },
|
||
|
|
{ "a" },
|
||
|
|
{ "abc" },
|
||
|
|
{ "message digest" },
|
||
|
|
{ "abcdefghijklmnopqrstuvwxyz" },
|
||
|
|
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
|
||
|
|
{ "12345678901234567890123456789012345678901234567890123456789012345678901234567890" }
|
||
|
|
};
|
||
|
|
|
||
|
|
static const size_t md4_test_strlen[7] =
|
||
|
|
{
|
||
|
|
0, 1, 3, 14, 26, 62, 80
|
||
|
|
};
|
||
|
|
|
||
|
|
static const unsigned char md4_test_sum[7][16] =
|
||
|
|
{
|
||
|
|
{ 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31,
|
||
|
|
0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 },
|
||
|
|
{ 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46,
|
||
|
|
0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 },
|
||
|
|
{ 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52,
|
||
|
|
0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D },
|
||
|
|
{ 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8,
|
||
|
|
0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B },
|
||
|
|
{ 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD,
|
||
|
|
0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 },
|
||
|
|
{ 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35,
|
||
|
|
0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 },
|
||
|
|
{ 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19,
|
||
|
|
0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 }
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Checkup routine
|
||
|
|
*/
|
||
|
|
int mbedtls_md4_self_test(int verbose)
|
||
|
|
{
|
||
|
|
int i, ret = 0;
|
||
|
|
unsigned char md4sum[16];
|
||
|
|
|
||
|
|
for (i = 0; i < 7; i++) {
|
||
|
|
if (verbose != 0) {
|
||
|
|
mbedtls_printf(" MD4 test #%d: ", i + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = mbedtls_md4_ret(md4_test_str[i], md4_test_strlen[i], md4sum);
|
||
|
|
if (ret != 0) {
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (memcmp(md4sum, md4_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_MD4_C */
|