1 /** 2 * \file ripemd160.h 3 * 4 * \brief RIPE MD-160 message digest 5 */ 6 /* 7 * Copyright The Mbed TLS Contributors 8 * SPDX-License-Identifier: Apache-2.0 9 * 10 * Licensed under the Apache License, Version 2.0 (the "License"); you may 11 * not use this file except in compliance with the License. 12 * You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, software 17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 19 * See the License for the specific language governing permissions and 20 * limitations under the License. 21 */ 22 #ifndef MBEDTLS_RIPEMD160_H 23 #define MBEDTLS_RIPEMD160_H 24 #include "mbedtls/private_access.h" 25 26 #include "mbedtls/build_info.h" 27 28 #include <stddef.h> 29 #include <stdint.h> 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #if !defined(MBEDTLS_RIPEMD160_ALT) 36 // Regular implementation 37 // 38 39 /** 40 * \brief RIPEMD-160 context structure 41 */ 42 typedef struct mbedtls_ripemd160_context 43 { 44 uint32_t MBEDTLS_PRIVATE(total)[2]; /*!< number of bytes processed */ 45 uint32_t MBEDTLS_PRIVATE(state)[5]; /*!< intermediate digest state */ 46 unsigned char MBEDTLS_PRIVATE(buffer)[64]; /*!< data block being processed */ 47 } 48 mbedtls_ripemd160_context; 49 50 #else /* MBEDTLS_RIPEMD160_ALT */ 51 #include "ripemd160_alt.h" 52 #endif /* MBEDTLS_RIPEMD160_ALT */ 53 54 /** 55 * \brief Initialize RIPEMD-160 context 56 * 57 * \param ctx RIPEMD-160 context to be initialized 58 */ 59 void mbedtls_ripemd160_init( mbedtls_ripemd160_context *ctx ); 60 61 /** 62 * \brief Clear RIPEMD-160 context 63 * 64 * \param ctx RIPEMD-160 context to be cleared 65 */ 66 void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx ); 67 68 /** 69 * \brief Clone (the state of) a RIPEMD-160 context 70 * 71 * \param dst The destination context 72 * \param src The context to be cloned 73 */ 74 void mbedtls_ripemd160_clone( mbedtls_ripemd160_context *dst, 75 const mbedtls_ripemd160_context *src ); 76 77 /** 78 * \brief RIPEMD-160 context setup 79 * 80 * \param ctx context to be initialized 81 * 82 * \return 0 if successful 83 */ 84 int mbedtls_ripemd160_starts( mbedtls_ripemd160_context *ctx ); 85 86 /** 87 * \brief RIPEMD-160 process buffer 88 * 89 * \param ctx RIPEMD-160 context 90 * \param input buffer holding the data 91 * \param ilen length of the input data 92 * 93 * \return 0 if successful 94 */ 95 int mbedtls_ripemd160_update( mbedtls_ripemd160_context *ctx, 96 const unsigned char *input, 97 size_t ilen ); 98 99 /** 100 * \brief RIPEMD-160 final digest 101 * 102 * \param ctx RIPEMD-160 context 103 * \param output RIPEMD-160 checksum result 104 * 105 * \return 0 if successful 106 */ 107 int mbedtls_ripemd160_finish( mbedtls_ripemd160_context *ctx, 108 unsigned char output[20] ); 109 110 /** 111 * \brief RIPEMD-160 process data block (internal use only) 112 * 113 * \param ctx RIPEMD-160 context 114 * \param data buffer holding one block of data 115 * 116 * \return 0 if successful 117 */ 118 int mbedtls_internal_ripemd160_process( mbedtls_ripemd160_context *ctx, 119 const unsigned char data[64] ); 120 121 /** 122 * \brief Output = RIPEMD-160( input buffer ) 123 * 124 * \param input buffer holding the data 125 * \param ilen length of the input data 126 * \param output RIPEMD-160 checksum result 127 * 128 * \return 0 if successful 129 */ 130 int mbedtls_ripemd160( const unsigned char *input, 131 size_t ilen, 132 unsigned char output[20] ); 133 134 #if defined(MBEDTLS_SELF_TEST) 135 136 /** 137 * \brief Checkup routine 138 * 139 * \return 0 if successful, or 1 if the test failed 140 */ 141 int mbedtls_ripemd160_self_test( int verbose ); 142 143 #endif /* MBEDTLS_SELF_TEST */ 144 145 #ifdef __cplusplus 146 } 147 #endif 148 149 #endif /* mbedtls_ripemd160.h */ 150
