git.zerfleddert.de Git - proxmark3-svn/blob - common/mbedtls/cipher_internal.h

   1 /**
   2  * \file cipher_internal.h
   3  *
   4  * \brief Cipher wrappers.
   5  *
   6  * \author Adriaan de Jong <dejong@fox-it.com>
   7  */
   8 /*
   9  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  10  *  SPDX-License-Identifier: GPL-2.0
  11  *
  12  *  This program is free software; you can redistribute it and/or modify
  13  *  it under the terms of the GNU General Public License as published by
  14  *  the Free Software Foundation; either version 2 of the License, or
  15  *  (at your option) any later version.
  16  *
  17  *  This program is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License along
  23  *  with this program; if not, write to the Free Software Foundation, Inc.,
  24  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  25  *
  26  *  This file is part of mbed TLS (https://tls.mbed.org)
  27  */
  28 #ifndef MBEDTLS_CIPHER_WRAP_H
  29 #define MBEDTLS_CIPHER_WRAP_H
  30
  31 #if !defined(MBEDTLS_CONFIG_FILE)
  32 #include "config.h"
  33 #else
  34 #include MBEDTLS_CONFIG_FILE
  35 #endif
  36
  37 #include "cipher.h"
  38
  39 #ifdef __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 /**
  44  * Base cipher information. The non-mode specific functions and values.
  45  */
  46 struct mbedtls_cipher_base_t
  47 {
  48     /** Base Cipher type (e.g. MBEDTLS_CIPHER_ID_AES) */
  49     mbedtls_cipher_id_t cipher;
  50
  51     /** Encrypt using ECB */
  52     int (*ecb_func)( void *ctx, mbedtls_operation_t mode,
  53                      const unsigned char *input, unsigned char *output );
  54
  55 #if defined(MBEDTLS_CIPHER_MODE_CBC)
  56     /** Encrypt using CBC */
  57     int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length,
  58                      unsigned char *iv, const unsigned char *input,
  59                      unsigned char *output );
  60 #endif
  61
  62 #if defined(MBEDTLS_CIPHER_MODE_CFB)
  63     /** Encrypt using CFB (Full length) */
  64     int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
  65                      unsigned char *iv, const unsigned char *input,
  66                      unsigned char *output );
  67 #endif
  68
  69 #if defined(MBEDTLS_CIPHER_MODE_OFB)
  70     /** Encrypt using OFB (Full length) */
  71     int (*ofb_func)( void *ctx, size_t length, size_t *iv_off,
  72                      unsigned char *iv,
  73                      const unsigned char *input,
  74                      unsigned char *output );
  75 #endif
  76
  77 #if defined(MBEDTLS_CIPHER_MODE_CTR)
  78     /** Encrypt using CTR */
  79     int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,
  80                      unsigned char *nonce_counter, unsigned char *stream_block,
  81                      const unsigned char *input, unsigned char *output );
  82 #endif
  83
  84 #if defined(MBEDTLS_CIPHER_MODE_XTS)
  85     /** Encrypt or decrypt using XTS. */
  86     int (*xts_func)( void *ctx, mbedtls_operation_t mode, size_t length,
  87                      const unsigned char data_unit[16],
  88                      const unsigned char *input, unsigned char *output );
  89 #endif
  90
  91 #if defined(MBEDTLS_CIPHER_MODE_STREAM)
  92     /** Encrypt using STREAM */
  93     int (*stream_func)( void *ctx, size_t length,
  94                         const unsigned char *input, unsigned char *output );
  95 #endif
  96
  97     /** Set key for encryption purposes */
  98     int (*setkey_enc_func)( void *ctx, const unsigned char *key,
  99                             unsigned int key_bitlen );
 100
 101     /** Set key for decryption purposes */
 102     int (*setkey_dec_func)( void *ctx, const unsigned char *key,
 103                             unsigned int key_bitlen);
 104
 105     /** Allocate a new context */
 106     void * (*ctx_alloc_func)( void );
 107
 108     /** Free the given context */
 109     void (*ctx_free_func)( void *ctx );
 110
 111 };
 112
 113 typedef struct
 114 {
 115     mbedtls_cipher_type_t type;
 116     const mbedtls_cipher_info_t *info;
 117 } mbedtls_cipher_definition_t;
 118
 119 extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[];
 120
 121 extern int mbedtls_cipher_supported[];
 122
 123 #ifdef __cplusplus
 124 }
 125 #endif
 126
 127 #endif /* MBEDTLS_CIPHER_WRAP_H */