mbed TLS Build
include/mbedtls/xtea.h@1:1a219dea6cb5, 2019-06-04 (annotated)
- Committer:
- williequesada
- Date:
- Tue Jun 04 16:03:38 2019 +0000
- Revision:
- 1:1a219dea6cb5
- Parent:
- 0:cdf462088d13
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
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markrad | 0:cdf462088d13 | 1 | /** |
markrad | 0:cdf462088d13 | 2 | * \file xtea.h |
markrad | 0:cdf462088d13 | 3 | * |
markrad | 0:cdf462088d13 | 4 | * \brief XTEA block cipher (32-bit) |
markrad | 0:cdf462088d13 | 5 | * |
markrad | 0:cdf462088d13 | 6 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved |
markrad | 0:cdf462088d13 | 7 | * SPDX-License-Identifier: Apache-2.0 |
markrad | 0:cdf462088d13 | 8 | * |
markrad | 0:cdf462088d13 | 9 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
markrad | 0:cdf462088d13 | 10 | * not use this file except in compliance with the License. |
markrad | 0:cdf462088d13 | 11 | * You may obtain a copy of the License at |
markrad | 0:cdf462088d13 | 12 | * |
markrad | 0:cdf462088d13 | 13 | * http://www.apache.org/licenses/LICENSE-2.0 |
markrad | 0:cdf462088d13 | 14 | * |
markrad | 0:cdf462088d13 | 15 | * Unless required by applicable law or agreed to in writing, software |
markrad | 0:cdf462088d13 | 16 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
markrad | 0:cdf462088d13 | 17 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
markrad | 0:cdf462088d13 | 18 | * See the License for the specific language governing permissions and |
markrad | 0:cdf462088d13 | 19 | * limitations under the License. |
markrad | 0:cdf462088d13 | 20 | * |
markrad | 0:cdf462088d13 | 21 | * This file is part of mbed TLS (https://tls.mbed.org) |
markrad | 0:cdf462088d13 | 22 | */ |
markrad | 0:cdf462088d13 | 23 | #ifndef MBEDTLS_XTEA_H |
markrad | 0:cdf462088d13 | 24 | #define MBEDTLS_XTEA_H |
markrad | 0:cdf462088d13 | 25 | |
markrad | 0:cdf462088d13 | 26 | #if !defined(MBEDTLS_CONFIG_FILE) |
markrad | 0:cdf462088d13 | 27 | #include "config.h" |
markrad | 0:cdf462088d13 | 28 | #else |
markrad | 0:cdf462088d13 | 29 | #include MBEDTLS_CONFIG_FILE |
markrad | 0:cdf462088d13 | 30 | #endif |
markrad | 0:cdf462088d13 | 31 | |
markrad | 0:cdf462088d13 | 32 | #include <stddef.h> |
markrad | 0:cdf462088d13 | 33 | #include <stdint.h> |
markrad | 0:cdf462088d13 | 34 | |
markrad | 0:cdf462088d13 | 35 | #define MBEDTLS_XTEA_ENCRYPT 1 |
markrad | 0:cdf462088d13 | 36 | #define MBEDTLS_XTEA_DECRYPT 0 |
markrad | 0:cdf462088d13 | 37 | |
markrad | 0:cdf462088d13 | 38 | #define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028 /**< The data input has an invalid length. */ |
markrad | 0:cdf462088d13 | 39 | |
markrad | 0:cdf462088d13 | 40 | #if !defined(MBEDTLS_XTEA_ALT) |
markrad | 0:cdf462088d13 | 41 | // Regular implementation |
markrad | 0:cdf462088d13 | 42 | // |
markrad | 0:cdf462088d13 | 43 | |
markrad | 0:cdf462088d13 | 44 | #ifdef __cplusplus |
markrad | 0:cdf462088d13 | 45 | extern "C" { |
markrad | 0:cdf462088d13 | 46 | #endif |
markrad | 0:cdf462088d13 | 47 | |
markrad | 0:cdf462088d13 | 48 | /** |
markrad | 0:cdf462088d13 | 49 | * \brief XTEA context structure |
markrad | 0:cdf462088d13 | 50 | */ |
markrad | 0:cdf462088d13 | 51 | typedef struct |
markrad | 0:cdf462088d13 | 52 | { |
markrad | 0:cdf462088d13 | 53 | uint32_t k[4]; /*!< key */ |
markrad | 0:cdf462088d13 | 54 | } |
markrad | 0:cdf462088d13 | 55 | mbedtls_xtea_context; |
markrad | 0:cdf462088d13 | 56 | |
markrad | 0:cdf462088d13 | 57 | /** |
markrad | 0:cdf462088d13 | 58 | * \brief Initialize XTEA context |
markrad | 0:cdf462088d13 | 59 | * |
markrad | 0:cdf462088d13 | 60 | * \param ctx XTEA context to be initialized |
markrad | 0:cdf462088d13 | 61 | */ |
markrad | 0:cdf462088d13 | 62 | void mbedtls_xtea_init( mbedtls_xtea_context *ctx ); |
markrad | 0:cdf462088d13 | 63 | |
markrad | 0:cdf462088d13 | 64 | /** |
markrad | 0:cdf462088d13 | 65 | * \brief Clear XTEA context |
markrad | 0:cdf462088d13 | 66 | * |
markrad | 0:cdf462088d13 | 67 | * \param ctx XTEA context to be cleared |
markrad | 0:cdf462088d13 | 68 | */ |
markrad | 0:cdf462088d13 | 69 | void mbedtls_xtea_free( mbedtls_xtea_context *ctx ); |
markrad | 0:cdf462088d13 | 70 | |
markrad | 0:cdf462088d13 | 71 | /** |
markrad | 0:cdf462088d13 | 72 | * \brief XTEA key schedule |
markrad | 0:cdf462088d13 | 73 | * |
markrad | 0:cdf462088d13 | 74 | * \param ctx XTEA context to be initialized |
markrad | 0:cdf462088d13 | 75 | * \param key the secret key |
markrad | 0:cdf462088d13 | 76 | */ |
markrad | 0:cdf462088d13 | 77 | void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] ); |
markrad | 0:cdf462088d13 | 78 | |
markrad | 0:cdf462088d13 | 79 | /** |
markrad | 0:cdf462088d13 | 80 | * \brief XTEA cipher function |
markrad | 0:cdf462088d13 | 81 | * |
markrad | 0:cdf462088d13 | 82 | * \param ctx XTEA context |
markrad | 0:cdf462088d13 | 83 | * \param mode MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT |
markrad | 0:cdf462088d13 | 84 | * \param input 8-byte input block |
markrad | 0:cdf462088d13 | 85 | * \param output 8-byte output block |
markrad | 0:cdf462088d13 | 86 | * |
markrad | 0:cdf462088d13 | 87 | * \return 0 if successful |
markrad | 0:cdf462088d13 | 88 | */ |
markrad | 0:cdf462088d13 | 89 | int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx, |
markrad | 0:cdf462088d13 | 90 | int mode, |
markrad | 0:cdf462088d13 | 91 | const unsigned char input[8], |
markrad | 0:cdf462088d13 | 92 | unsigned char output[8] ); |
markrad | 0:cdf462088d13 | 93 | |
markrad | 0:cdf462088d13 | 94 | #if defined(MBEDTLS_CIPHER_MODE_CBC) |
markrad | 0:cdf462088d13 | 95 | /** |
markrad | 0:cdf462088d13 | 96 | * \brief XTEA CBC cipher function |
markrad | 0:cdf462088d13 | 97 | * |
markrad | 0:cdf462088d13 | 98 | * \param ctx XTEA context |
markrad | 0:cdf462088d13 | 99 | * \param mode MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT |
markrad | 0:cdf462088d13 | 100 | * \param length the length of input, multiple of 8 |
markrad | 0:cdf462088d13 | 101 | * \param iv initialization vector for CBC mode |
markrad | 0:cdf462088d13 | 102 | * \param input input block |
markrad | 0:cdf462088d13 | 103 | * \param output output block |
markrad | 0:cdf462088d13 | 104 | * |
markrad | 0:cdf462088d13 | 105 | * \return 0 if successful, |
markrad | 0:cdf462088d13 | 106 | * MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH if the length % 8 != 0 |
markrad | 0:cdf462088d13 | 107 | */ |
markrad | 0:cdf462088d13 | 108 | int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, |
markrad | 0:cdf462088d13 | 109 | int mode, |
markrad | 0:cdf462088d13 | 110 | size_t length, |
markrad | 0:cdf462088d13 | 111 | unsigned char iv[8], |
markrad | 0:cdf462088d13 | 112 | const unsigned char *input, |
markrad | 0:cdf462088d13 | 113 | unsigned char *output); |
markrad | 0:cdf462088d13 | 114 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ |
markrad | 0:cdf462088d13 | 115 | |
markrad | 0:cdf462088d13 | 116 | #ifdef __cplusplus |
markrad | 0:cdf462088d13 | 117 | } |
markrad | 0:cdf462088d13 | 118 | #endif |
markrad | 0:cdf462088d13 | 119 | |
markrad | 0:cdf462088d13 | 120 | #else /* MBEDTLS_XTEA_ALT */ |
markrad | 0:cdf462088d13 | 121 | #include "xtea_alt.h" |
markrad | 0:cdf462088d13 | 122 | #endif /* MBEDTLS_XTEA_ALT */ |
markrad | 0:cdf462088d13 | 123 | |
markrad | 0:cdf462088d13 | 124 | #ifdef __cplusplus |
markrad | 0:cdf462088d13 | 125 | extern "C" { |
markrad | 0:cdf462088d13 | 126 | #endif |
markrad | 0:cdf462088d13 | 127 | |
markrad | 0:cdf462088d13 | 128 | /** |
markrad | 0:cdf462088d13 | 129 | * \brief Checkup routine |
markrad | 0:cdf462088d13 | 130 | * |
markrad | 0:cdf462088d13 | 131 | * \return 0 if successful, or 1 if the test failed |
markrad | 0:cdf462088d13 | 132 | */ |
markrad | 0:cdf462088d13 | 133 | int mbedtls_xtea_self_test( int verbose ); |
markrad | 0:cdf462088d13 | 134 | |
markrad | 0:cdf462088d13 | 135 | #ifdef __cplusplus |
markrad | 0:cdf462088d13 | 136 | } |
markrad | 0:cdf462088d13 | 137 | #endif |
markrad | 0:cdf462088d13 | 138 | |
markrad | 0:cdf462088d13 | 139 | #endif /* xtea.h */ |