[398] | 1 | /**
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| 2 | * \file cipher_internal.h
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| 3 | *
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| 4 | * \brief Cipher wrappers.
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| 5 | *
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| 6 | * \author Adriaan de Jong <dejong@fox-it.com>
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| 7 | */
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| 8 | /*
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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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| 11 | *
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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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| 15 | *
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| 16 | * http://www.apache.org/licenses/LICENSE-2.0
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| 17 | *
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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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| 23 | *
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| 24 | * This file is part of mbed TLS (https://tls.mbed.org)
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| 25 | */
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| 26 | #ifndef MBEDTLS_CIPHER_WRAP_H
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| 27 | #define MBEDTLS_CIPHER_WRAP_H
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| 28 |
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| 29 | #if !defined(MBEDTLS_CONFIG_FILE)
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| 30 | #include "config.h"
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| 31 | #else
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| 32 | #include MBEDTLS_CONFIG_FILE
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| 33 | #endif
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| 34 |
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| 35 | #include "cipher.h"
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| 36 |
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| 37 | #ifdef __cplusplus
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| 38 | extern "C" {
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| 39 | #endif
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| 40 |
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| 41 | /**
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| 42 | * Base cipher information. The non-mode specific functions and values.
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| 43 | */
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| 44 | struct mbedtls_cipher_base_t
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| 45 | {
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| 46 | /** Base Cipher type (e.g. MBEDTLS_CIPHER_ID_AES) */
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| 47 | mbedtls_cipher_id_t cipher;
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| 48 |
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| 49 | /** Encrypt using ECB */
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| 50 | int (*ecb_func)( void *ctx, mbedtls_operation_t mode,
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| 51 | const unsigned char *input, unsigned char *output );
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| 52 |
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| 53 | #if defined(MBEDTLS_CIPHER_MODE_CBC)
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| 54 | /** Encrypt using CBC */
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| 55 | int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length,
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| 56 | unsigned char *iv, const unsigned char *input,
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| 57 | unsigned char *output );
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| 58 | #endif
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| 59 |
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| 60 | #if defined(MBEDTLS_CIPHER_MODE_CFB)
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| 61 | /** Encrypt using CFB (Full length) */
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| 62 | int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
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| 63 | unsigned char *iv, const unsigned char *input,
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| 64 | unsigned char *output );
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| 65 | #endif
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| 66 |
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| 67 | #if defined(MBEDTLS_CIPHER_MODE_OFB)
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| 68 | /** Encrypt using OFB (Full length) */
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| 69 | int (*ofb_func)( void *ctx, size_t length, size_t *iv_off,
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| 70 | unsigned char *iv,
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| 71 | const unsigned char *input,
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| 72 | unsigned char *output );
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| 73 | #endif
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| 74 |
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| 75 | #if defined(MBEDTLS_CIPHER_MODE_CTR)
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| 76 | /** Encrypt using CTR */
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| 77 | int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,
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| 78 | unsigned char *nonce_counter, unsigned char *stream_block,
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| 79 | const unsigned char *input, unsigned char *output );
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| 80 | #endif
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| 81 |
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| 82 | #if defined(MBEDTLS_CIPHER_MODE_XTS)
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| 83 | /** Encrypt or decrypt using XTS. */
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| 84 | int (*xts_func)( void *ctx, mbedtls_operation_t mode, size_t length,
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| 85 | const unsigned char data_unit[16],
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| 86 | const unsigned char *input, unsigned char *output );
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| 87 | #endif
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| 88 |
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| 89 | #if defined(MBEDTLS_CIPHER_MODE_STREAM)
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| 90 | /** Encrypt using STREAM */
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| 91 | int (*stream_func)( void *ctx, size_t length,
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| 92 | const unsigned char *input, unsigned char *output );
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| 93 | #endif
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| 94 |
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| 95 | /** Set key for encryption purposes */
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| 96 | int (*setkey_enc_func)( void *ctx, const unsigned char *key,
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| 97 | unsigned int key_bitlen );
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| 98 |
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| 99 | /** Set key for decryption purposes */
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| 100 | int (*setkey_dec_func)( void *ctx, const unsigned char *key,
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| 101 | unsigned int key_bitlen);
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| 102 |
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| 103 | /** Allocate a new context */
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| 104 | void * (*ctx_alloc_func)( void );
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| 105 |
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| 106 | /** Free the given context */
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| 107 | void (*ctx_free_func)( void *ctx );
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| 108 |
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| 109 | };
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| 110 |
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| 111 | typedef struct
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| 112 | {
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| 113 | mbedtls_cipher_type_t type;
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| 114 | const mbedtls_cipher_info_t *info;
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| 115 | } mbedtls_cipher_definition_t;
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| 116 |
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| 117 | extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[];
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| 118 |
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| 119 | extern int mbedtls_cipher_supported[];
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| 120 |
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| 121 | #ifdef __cplusplus
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| 122 | }
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| 123 | #endif
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| 124 |
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| 125 | #endif /* MBEDTLS_CIPHER_WRAP_H */
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