2 * \file cipher_internal.h
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4 * \brief Cipher wrappers.
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6 * \author Adriaan de Jong <dejong@fox-it.com>
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9 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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10 * SPDX-License-Identifier: Apache-2.0
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12 * Licensed under the Apache License, Version 2.0 (the "License"); you may
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13 * not use this file except in compliance with the License.
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14 * You may obtain a copy of the License at
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16 * http://www.apache.org/licenses/LICENSE-2.0
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18 * Unless required by applicable law or agreed to in writing, software
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19 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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21 * See the License for the specific language governing permissions and
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22 * limitations under the License.
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24 * This file is part of mbed TLS (https://tls.mbed.org)
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26 #ifndef MBEDTLS_CIPHER_WRAP_H
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27 #define MBEDTLS_CIPHER_WRAP_H
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29 #if !defined(MBEDTLS_CONFIG_FILE)
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32 #include MBEDTLS_CONFIG_FILE
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37 #if defined(MBEDTLS_USE_PSA_CRYPTO)
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38 #include "psa/crypto.h"
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39 #endif /* MBEDTLS_USE_PSA_CRYPTO */
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46 * Base cipher information. The non-mode specific functions and values.
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48 struct mbedtls_cipher_base_t
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50 /** Base Cipher type (e.g. MBEDTLS_CIPHER_ID_AES) */
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51 mbedtls_cipher_id_t cipher;
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53 /** Encrypt using ECB */
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54 int (*ecb_func)( void *ctx, mbedtls_operation_t mode,
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55 const unsigned char *input, unsigned char *output );
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57 #if defined(MBEDTLS_CIPHER_MODE_CBC)
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58 /** Encrypt using CBC */
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59 int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length,
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60 unsigned char *iv, const unsigned char *input,
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61 unsigned char *output );
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64 #if defined(MBEDTLS_CIPHER_MODE_CFB)
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65 /** Encrypt using CFB (Full length) */
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66 int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
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67 unsigned char *iv, const unsigned char *input,
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68 unsigned char *output );
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71 #if defined(MBEDTLS_CIPHER_MODE_OFB)
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72 /** Encrypt using OFB (Full length) */
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73 int (*ofb_func)( void *ctx, size_t length, size_t *iv_off,
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75 const unsigned char *input,
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76 unsigned char *output );
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79 #if defined(MBEDTLS_CIPHER_MODE_CTR)
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80 /** Encrypt using CTR */
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81 int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,
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82 unsigned char *nonce_counter, unsigned char *stream_block,
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83 const unsigned char *input, unsigned char *output );
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86 #if defined(MBEDTLS_CIPHER_MODE_XTS)
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87 /** Encrypt or decrypt using XTS. */
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88 int (*xts_func)( void *ctx, mbedtls_operation_t mode, size_t length,
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89 const unsigned char data_unit[16],
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90 const unsigned char *input, unsigned char *output );
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93 #if defined(MBEDTLS_CIPHER_MODE_STREAM)
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94 /** Encrypt using STREAM */
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95 int (*stream_func)( void *ctx, size_t length,
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96 const unsigned char *input, unsigned char *output );
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99 /** Set key for encryption purposes */
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100 int (*setkey_enc_func)( void *ctx, const unsigned char *key,
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101 unsigned int key_bitlen );
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103 /** Set key for decryption purposes */
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104 int (*setkey_dec_func)( void *ctx, const unsigned char *key,
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105 unsigned int key_bitlen);
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107 /** Allocate a new context */
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108 void * (*ctx_alloc_func)( void );
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110 /** Free the given context */
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111 void (*ctx_free_func)( void *ctx );
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117 mbedtls_cipher_type_t type;
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118 const mbedtls_cipher_info_t *info;
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119 } mbedtls_cipher_definition_t;
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121 #if defined(MBEDTLS_USE_PSA_CRYPTO)
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124 MBEDTLS_CIPHER_PSA_KEY_UNSET = 0,
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125 MBEDTLS_CIPHER_PSA_KEY_OWNED, /* Used for PSA-based cipher contexts which */
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126 /* use raw key material internally imported */
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127 /* into a allocated key slot, and which */
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128 /* hence need to destroy that key slot */
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129 /* when they are no longer needed. */
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130 MBEDTLS_CIPHER_PSA_KEY_NOT_OWNED, /* Used for PSA-based cipher contexts */
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131 /* which use a key from a key slot */
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132 /* provided by the user, and which */
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133 /* hence should not be destroyed when */
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134 /* the context is no longer needed. */
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135 } mbedtls_cipher_psa_key_ownership;
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139 psa_algorithm_t alg;
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140 psa_key_handle_t slot;
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141 mbedtls_cipher_psa_key_ownership slot_state;
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142 } mbedtls_cipher_context_psa;
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143 #endif /* MBEDTLS_USE_PSA_CRYPTO */
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145 extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[];
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147 extern int mbedtls_cipher_supported[];
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153 #endif /* MBEDTLS_CIPHER_WRAP_H */
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