1 /** 2 * \file sha512.h 3 * 4 * \brief SHA-384 and SHA-512 cryptographic hash function 5 * 6 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved 7 * SPDX-License-Identifier: Apache-2.0 8 * 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may 10 * not use this file except in compliance with the License. 11 * You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 * 21 * This file is part of mbed TLS (https://tls.mbed.org) 22 */ 23 #ifndef MBEDTLS_SHA512_H 24 #define MBEDTLS_SHA512_H 25 26 #if !defined(MBEDTLS_CONFIG_FILE) 27 #include "config.h" 28 #else 29 #include MBEDTLS_CONFIG_FILE 30 #endif 31 32 #include <stddef.h> 33 #include <stdint.h> 34 35 #if !defined(MBEDTLS_SHA512_ALT) 36 // Regular implementation 37 // 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /** 44 * \brief SHA-512 context structure 45 */ 46 typedef struct 47 { 48 uint64_t total[2]; /*!< number of bytes processed */ 49 uint64_t state[8]; /*!< intermediate digest state */ 50 unsigned char buffer[128]; /*!< data block being processed */ 51 int is384; /*!< 0 => SHA-512, else SHA-384 */ 52 } 53 mbedtls_sha512_context; 54 55 /** 56 * \brief Initialize SHA-512 context 57 * 58 * \param ctx SHA-512 context to be initialized 59 */ 60 void mbedtls_sha512_init( mbedtls_sha512_context *ctx ); 61 62 /** 63 * \brief Clear SHA-512 context 64 * 65 * \param ctx SHA-512 context to be cleared 66 */ 67 void mbedtls_sha512_free( mbedtls_sha512_context *ctx ); 68 69 /** 70 * \brief Clone (the state of) a SHA-512 context 71 * 72 * \param dst The destination context 73 * \param src The context to be cloned 74 */ 75 void mbedtls_sha512_clone( mbedtls_sha512_context *dst, 76 const mbedtls_sha512_context *src ); 77 78 /** 79 * \brief SHA-512 context setup 80 * 81 * \param ctx context to be initialized 82 * \param is384 0 = use SHA512, 1 = use SHA384 83 */ 84 void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 ); 85 86 /** 87 * \brief SHA-512 process buffer 88 * 89 * \param ctx SHA-512 context 90 * \param input buffer holding the data 91 * \param ilen length of the input data 92 */ 93 void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input, 94 size_t ilen ); 95 96 /** 97 * \brief SHA-512 final digest 98 * 99 * \param ctx SHA-512 context 100 * \param output SHA-384/512 checksum result 101 */ 102 void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char output[64] ); 103 104 #ifdef __cplusplus 105 } 106 #endif 107 108 #else /* MBEDTLS_SHA512_ALT */ 109 #include "sha512_alt.h" 110 #endif /* MBEDTLS_SHA512_ALT */ 111 112 #ifdef __cplusplus 113 extern "C" { 114 #endif 115 116 /** 117 * \brief Output = SHA-512( input buffer ) 118 * 119 * \param input buffer holding the data 120 * \param ilen length of the input data 121 * \param output SHA-384/512 checksum result 122 * \param is384 0 = use SHA512, 1 = use SHA384 123 */ 124 void mbedtls_sha512( const unsigned char *input, size_t ilen, 125 unsigned char output[64], int is384 ); 126 127 /** 128 * \brief Checkup routine 129 * 130 * \return 0 if successful, or 1 if the test failed 131 */ 132 int mbedtls_sha512_self_test( int verbose ); 133 134 /* Internal use */ 135 void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] ); 136 137 #ifdef __cplusplus 138 } 139 #endif 140 141 #endif /* mbedtls_sha512.h */ 142