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/xtea.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 xtea.h
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * \brief XTEA block cipher (32-bit)
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_XTEA_H
mbedAustin 11:cada08fc8a70 24 #define MBEDTLS_XTEA_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 #define MBEDTLS_XTEA_ENCRYPT 1
mbedAustin 11:cada08fc8a70 36 #define MBEDTLS_XTEA_DECRYPT 0
mbedAustin 11:cada08fc8a70 37
mbedAustin 11:cada08fc8a70 38 #define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028 /**< The data input has an invalid length. */
mbedAustin 11:cada08fc8a70 39
mbedAustin 11:cada08fc8a70 40 #if !defined(MBEDTLS_XTEA_ALT)
mbedAustin 11:cada08fc8a70 41 // Regular implementation
mbedAustin 11:cada08fc8a70 42 //
mbedAustin 11:cada08fc8a70 43
mbedAustin 11:cada08fc8a70 44 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 45 extern "C" {
mbedAustin 11:cada08fc8a70 46 #endif
mbedAustin 11:cada08fc8a70 47
mbedAustin 11:cada08fc8a70 48 /**
mbedAustin 11:cada08fc8a70 49 * \brief XTEA context structure
mbedAustin 11:cada08fc8a70 50 */
mbedAustin 11:cada08fc8a70 51 typedef struct
mbedAustin 11:cada08fc8a70 52 {
mbedAustin 11:cada08fc8a70 53 uint32_t k[4]; /*!< key */
mbedAustin 11:cada08fc8a70 54 }
mbedAustin 11:cada08fc8a70 55 mbedtls_xtea_context;
mbedAustin 11:cada08fc8a70 56
mbedAustin 11:cada08fc8a70 57 /**
mbedAustin 11:cada08fc8a70 58 * \brief Initialize XTEA context
mbedAustin 11:cada08fc8a70 59 *
mbedAustin 11:cada08fc8a70 60 * \param ctx XTEA context to be initialized
mbedAustin 11:cada08fc8a70 61 */
mbedAustin 11:cada08fc8a70 62 void mbedtls_xtea_init( mbedtls_xtea_context *ctx );
mbedAustin 11:cada08fc8a70 63
mbedAustin 11:cada08fc8a70 64 /**
mbedAustin 11:cada08fc8a70 65 * \brief Clear XTEA context
mbedAustin 11:cada08fc8a70 66 *
mbedAustin 11:cada08fc8a70 67 * \param ctx XTEA context to be cleared
mbedAustin 11:cada08fc8a70 68 */
mbedAustin 11:cada08fc8a70 69 void mbedtls_xtea_free( mbedtls_xtea_context *ctx );
mbedAustin 11:cada08fc8a70 70
mbedAustin 11:cada08fc8a70 71 /**
mbedAustin 11:cada08fc8a70 72 * \brief XTEA key schedule
mbedAustin 11:cada08fc8a70 73 *
mbedAustin 11:cada08fc8a70 74 * \param ctx XTEA context to be initialized
mbedAustin 11:cada08fc8a70 75 * \param key the secret key
mbedAustin 11:cada08fc8a70 76 */
mbedAustin 11:cada08fc8a70 77 void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] );
mbedAustin 11:cada08fc8a70 78
mbedAustin 11:cada08fc8a70 79 /**
mbedAustin 11:cada08fc8a70 80 * \brief XTEA cipher function
mbedAustin 11:cada08fc8a70 81 *
mbedAustin 11:cada08fc8a70 82 * \param ctx XTEA context
mbedAustin 11:cada08fc8a70 83 * \param mode MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT
mbedAustin 11:cada08fc8a70 84 * \param input 8-byte input block
mbedAustin 11:cada08fc8a70 85 * \param output 8-byte output block
mbedAustin 11:cada08fc8a70 86 *
mbedAustin 11:cada08fc8a70 87 * \return 0 if successful
mbedAustin 11:cada08fc8a70 88 */
mbedAustin 11:cada08fc8a70 89 int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx,
mbedAustin 11:cada08fc8a70 90 int mode,
mbedAustin 11:cada08fc8a70 91 const unsigned char input[8],
mbedAustin 11:cada08fc8a70 92 unsigned char output[8] );
mbedAustin 11:cada08fc8a70 93
mbedAustin 11:cada08fc8a70 94 #if defined(MBEDTLS_CIPHER_MODE_CBC)
mbedAustin 11:cada08fc8a70 95 /**
mbedAustin 11:cada08fc8a70 96 * \brief XTEA CBC cipher function
mbedAustin 11:cada08fc8a70 97 *
mbedAustin 11:cada08fc8a70 98 * \param ctx XTEA context
mbedAustin 11:cada08fc8a70 99 * \param mode MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT
mbedAustin 11:cada08fc8a70 100 * \param length the length of input, multiple of 8
mbedAustin 11:cada08fc8a70 101 * \param iv initialization vector for CBC mode
mbedAustin 11:cada08fc8a70 102 * \param input input block
mbedAustin 11:cada08fc8a70 103 * \param output output block
mbedAustin 11:cada08fc8a70 104 *
mbedAustin 11:cada08fc8a70 105 * \return 0 if successful,
mbedAustin 11:cada08fc8a70 106 * MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH if the length % 8 != 0
mbedAustin 11:cada08fc8a70 107 */
mbedAustin 11:cada08fc8a70 108 int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx,
mbedAustin 11:cada08fc8a70 109 int mode,
mbedAustin 11:cada08fc8a70 110 size_t length,
mbedAustin 11:cada08fc8a70 111 unsigned char iv[8],
mbedAustin 11:cada08fc8a70 112 const unsigned char *input,
mbedAustin 11:cada08fc8a70 113 unsigned char *output);
mbedAustin 11:cada08fc8a70 114 #endif /* MBEDTLS_CIPHER_MODE_CBC */
mbedAustin 11:cada08fc8a70 115
mbedAustin 11:cada08fc8a70 116 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 117 }
mbedAustin 11:cada08fc8a70 118 #endif
mbedAustin 11:cada08fc8a70 119
mbedAustin 11:cada08fc8a70 120 #else /* MBEDTLS_XTEA_ALT */
mbedAustin 11:cada08fc8a70 121 #include "xtea_alt.h"
mbedAustin 11:cada08fc8a70 122 #endif /* MBEDTLS_XTEA_ALT */
mbedAustin 11:cada08fc8a70 123
mbedAustin 11:cada08fc8a70 124 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 125 extern "C" {
mbedAustin 11:cada08fc8a70 126 #endif
mbedAustin 11:cada08fc8a70 127
mbedAustin 11:cada08fc8a70 128 /**
mbedAustin 11:cada08fc8a70 129 * \brief Checkup routine
mbedAustin 11:cada08fc8a70 130 *
mbedAustin 11:cada08fc8a70 131 * \return 0 if successful, or 1 if the test failed
mbedAustin 11:cada08fc8a70 132 */
mbedAustin 11:cada08fc8a70 133 int mbedtls_xtea_self_test( int verbose );
mbedAustin 11:cada08fc8a70 134
mbedAustin 11:cada08fc8a70 135 #ifdef __cplusplus
mbedAustin 11:cada08fc8a70 136 }
mbedAustin 11:cada08fc8a70 137 #endif
mbedAustin 11:cada08fc8a70 138
mbedAustin 11:cada08fc8a70 139 #endif /* xtea.h */