Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbedtls/mbedtls/sha256.h@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

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mbedAustin 11:cada08fc8a70 1 /**
mbedAustin 11:cada08fc8a70 2 * \file mbedtls_sha256.h
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * \brief SHA-224 and SHA-256 cryptographic hash function
mbedAustin 11:cada08fc8a70 5 *
mbedAustin 11:cada08fc8a70 6 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
mbedAustin 11:cada08fc8a70 7 * SPDX-License-Identifier: Apache-2.0
mbedAustin 11:cada08fc8a70 8 *
mbedAustin 11:cada08fc8a70 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
mbedAustin 11:cada08fc8a70 10 * not use this file except in compliance with the License.
mbedAustin 11:cada08fc8a70 11 * You may obtain a copy of the License at
mbedAustin 11:cada08fc8a70 12 *
mbedAustin 11:cada08fc8a70 13 * http://www.apache.org/licenses/LICENSE-2.0
mbedAustin 11:cada08fc8a70 14 *
mbedAustin 11:cada08fc8a70 15 * Unless required by applicable law or agreed to in writing, software
mbedAustin 11:cada08fc8a70 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
mbedAustin 11:cada08fc8a70 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbedAustin 11:cada08fc8a70 18 * See the License for the specific language governing permissions and
mbedAustin 11:cada08fc8a70 19 * limitations under the License.
mbedAustin 11:cada08fc8a70 20 *
mbedAustin 11:cada08fc8a70 21 * This file is part of mbed TLS (https://tls.mbed.org)
mbedAustin 11:cada08fc8a70 22 */
mbedAustin 11:cada08fc8a70 23 #ifndef MBEDTLS_SHA256_H
mbedAustin 11:cada08fc8a70 24 #define MBEDTLS_SHA256_H
mbedAustin 11:cada08fc8a70 25
mbedAustin 11:cada08fc8a70 26 #if !defined(MBEDTLS_CONFIG_FILE)
mbedAustin 11:cada08fc8a70 27 #include "config.h"
mbedAustin 11:cada08fc8a70 28 #else
mbedAustin 11:cada08fc8a70 29 #include MBEDTLS_CONFIG_FILE
mbedAustin 11:cada08fc8a70 30 #endif
mbedAustin 11:cada08fc8a70 31
mbedAustin 11:cada08fc8a70 32 #include <stddef.h>
mbedAustin 11:cada08fc8a70 33 #include <stdint.h>
mbedAustin 11:cada08fc8a70 34
mbedAustin 11:cada08fc8a70 35 #if !defined(MBEDTLS_SHA256_ALT)
mbedAustin 11:cada08fc8a70 36 // Regular implementation
mbedAustin 11:cada08fc8a70 37 //
mbedAustin 11:cada08fc8a70 38
mbedAustin 11:cada08fc8a70 39 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 40 extern "C" {
mbedAustin 11:cada08fc8a70 41 #endif
mbedAustin 11:cada08fc8a70 42
mbedAustin 11:cada08fc8a70 43 /**
mbedAustin 11:cada08fc8a70 44 * \brief SHA-256 context structure
mbedAustin 11:cada08fc8a70 45 */
mbedAustin 11:cada08fc8a70 46 typedef struct
mbedAustin 11:cada08fc8a70 47 {
mbedAustin 11:cada08fc8a70 48 uint32_t total[2]; /*!< number of bytes processed */
mbedAustin 11:cada08fc8a70 49 uint32_t state[8]; /*!< intermediate digest state */
mbedAustin 11:cada08fc8a70 50 unsigned char buffer[64]; /*!< data block being processed */
mbedAustin 11:cada08fc8a70 51 int is224; /*!< 0 => SHA-256, else SHA-224 */
mbedAustin 11:cada08fc8a70 52 }
mbedAustin 11:cada08fc8a70 53 mbedtls_sha256_context;
mbedAustin 11:cada08fc8a70 54
mbedAustin 11:cada08fc8a70 55 /**
mbedAustin 11:cada08fc8a70 56 * \brief Initialize SHA-256 context
mbedAustin 11:cada08fc8a70 57 *
mbedAustin 11:cada08fc8a70 58 * \param ctx SHA-256 context to be initialized
mbedAustin 11:cada08fc8a70 59 */
mbedAustin 11:cada08fc8a70 60 void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
mbedAustin 11:cada08fc8a70 61
mbedAustin 11:cada08fc8a70 62 /**
mbedAustin 11:cada08fc8a70 63 * \brief Clear SHA-256 context
mbedAustin 11:cada08fc8a70 64 *
mbedAustin 11:cada08fc8a70 65 * \param ctx SHA-256 context to be cleared
mbedAustin 11:cada08fc8a70 66 */
mbedAustin 11:cada08fc8a70 67 void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
mbedAustin 11:cada08fc8a70 68
mbedAustin 11:cada08fc8a70 69 /**
mbedAustin 11:cada08fc8a70 70 * \brief Clone (the state of) a SHA-256 context
mbedAustin 11:cada08fc8a70 71 *
mbedAustin 11:cada08fc8a70 72 * \param dst The destination context
mbedAustin 11:cada08fc8a70 73 * \param src The context to be cloned
mbedAustin 11:cada08fc8a70 74 */
mbedAustin 11:cada08fc8a70 75 void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
mbedAustin 11:cada08fc8a70 76 const mbedtls_sha256_context *src );
mbedAustin 11:cada08fc8a70 77
mbedAustin 11:cada08fc8a70 78 /**
mbedAustin 11:cada08fc8a70 79 * \brief SHA-256 context setup
mbedAustin 11:cada08fc8a70 80 *
mbedAustin 11:cada08fc8a70 81 * \param ctx context to be initialized
mbedAustin 11:cada08fc8a70 82 * \param is224 0 = use SHA256, 1 = use SHA224
mbedAustin 11:cada08fc8a70 83 */
mbedAustin 11:cada08fc8a70 84 void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
mbedAustin 11:cada08fc8a70 85
mbedAustin 11:cada08fc8a70 86 /**
mbedAustin 11:cada08fc8a70 87 * \brief SHA-256 process buffer
mbedAustin 11:cada08fc8a70 88 *
mbedAustin 11:cada08fc8a70 89 * \param ctx SHA-256 context
mbedAustin 11:cada08fc8a70 90 * \param input buffer holding the data
mbedAustin 11:cada08fc8a70 91 * \param ilen length of the input data
mbedAustin 11:cada08fc8a70 92 */
mbedAustin 11:cada08fc8a70 93 void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
mbedAustin 11:cada08fc8a70 94 size_t ilen );
mbedAustin 11:cada08fc8a70 95
mbedAustin 11:cada08fc8a70 96 /**
mbedAustin 11:cada08fc8a70 97 * \brief SHA-256 final digest
mbedAustin 11:cada08fc8a70 98 *
mbedAustin 11:cada08fc8a70 99 * \param ctx SHA-256 context
mbedAustin 11:cada08fc8a70 100 * \param output SHA-224/256 checksum result
mbedAustin 11:cada08fc8a70 101 */
mbedAustin 11:cada08fc8a70 102 void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );
mbedAustin 11:cada08fc8a70 103
mbedAustin 11:cada08fc8a70 104 /* Internal use */
mbedAustin 11:cada08fc8a70 105 void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
mbedAustin 11:cada08fc8a70 106
mbedAustin 11:cada08fc8a70 107 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 108 }
mbedAustin 11:cada08fc8a70 109 #endif
mbedAustin 11:cada08fc8a70 110
mbedAustin 11:cada08fc8a70 111 #else /* MBEDTLS_SHA256_ALT */
mbedAustin 11:cada08fc8a70 112 #include "sha256_alt.h"
mbedAustin 11:cada08fc8a70 113 #endif /* MBEDTLS_SHA256_ALT */
mbedAustin 11:cada08fc8a70 114
mbedAustin 11:cada08fc8a70 115 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 116 extern "C" {
mbedAustin 11:cada08fc8a70 117 #endif
mbedAustin 11:cada08fc8a70 118
mbedAustin 11:cada08fc8a70 119 /**
mbedAustin 11:cada08fc8a70 120 * \brief Output = SHA-256( input buffer )
mbedAustin 11:cada08fc8a70 121 *
mbedAustin 11:cada08fc8a70 122 * \param input buffer holding the data
mbedAustin 11:cada08fc8a70 123 * \param ilen length of the input data
mbedAustin 11:cada08fc8a70 124 * \param output SHA-224/256 checksum result
mbedAustin 11:cada08fc8a70 125 * \param is224 0 = use SHA256, 1 = use SHA224
mbedAustin 11:cada08fc8a70 126 */
mbedAustin 11:cada08fc8a70 127 void mbedtls_sha256( const unsigned char *input, size_t ilen,
mbedAustin 11:cada08fc8a70 128 unsigned char output[32], int is224 );
mbedAustin 11:cada08fc8a70 129
mbedAustin 11:cada08fc8a70 130 /**
mbedAustin 11:cada08fc8a70 131 * \brief Checkup routine
mbedAustin 11:cada08fc8a70 132 *
mbedAustin 11:cada08fc8a70 133 * \return 0 if successful, or 1 if the test failed
mbedAustin 11:cada08fc8a70 134 */
mbedAustin 11:cada08fc8a70 135 int mbedtls_sha256_self_test( int verbose );
mbedAustin 11:cada08fc8a70 136
mbedAustin 11:cada08fc8a70 137 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 138 }
mbedAustin 11:cada08fc8a70 139 #endif
mbedAustin 11:cada08fc8a70 140
mbedAustin 11:cada08fc8a70 141 #endif /* mbedtls_sha256.h */