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cipher.h
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1
10/*
11 * Copyright The Mbed TLS Contributors
12 * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
13 *
14 * This file is provided under the Apache License 2.0, or the
15 * GNU General Public License v2.0 or later.
16 *
17 * **********
18 * Apache License 2.0:
19 *
20 * Licensed under the Apache License, Version 2.0 (the "License"); you may
21 * not use this file except in compliance with the License.
22 * You may obtain a copy of the License at
23 *
24 * http://www.apache.org/licenses/LICENSE-2.0
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27 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
28 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
29 * See the License for the specific language governing permissions and
30 * limitations under the License.
31 *
32 * **********
33 *
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35 * GNU General Public License v2.0 or later:
36 *
37 * This program is free software; you can redistribute it and/or modify
38 * it under the terms of the GNU General Public License as published by
39 * the Free Software Foundation; either version 2 of the License, or
40 * (at your option) any later version.
41 *
42 * This program is distributed in the hope that it will be useful,
43 * but WITHOUT ANY WARRANTY; without even the implied warranty of
44 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
45 * GNU General Public License for more details.
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52 */
53
54#ifndef MBEDTLS_CIPHER_H
55#define MBEDTLS_CIPHER_H
56
57#if !defined(MBEDTLS_CONFIG_FILE)
58#include "config.h"
59#else
60#include MBEDTLS_CONFIG_FILE
61#endif
62
63#include <stddef.h>
64#include "platform_util.h"
65
66#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
67#define MBEDTLS_CIPHER_MODE_AEAD
68#endif
69
70#if defined(MBEDTLS_CIPHER_MODE_CBC)
71#define MBEDTLS_CIPHER_MODE_WITH_PADDING
72#endif
73
74#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) || \
75 defined(MBEDTLS_CHACHA20_C)
76#define MBEDTLS_CIPHER_MODE_STREAM
77#endif
78
79#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
80 !defined(inline) && !defined(__cplusplus)
81#define inline __inline
82#endif
83
84#define MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE -0x6080
85#define MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA -0x6100
86#define MBEDTLS_ERR_CIPHER_ALLOC_FAILED -0x6180
87#define MBEDTLS_ERR_CIPHER_INVALID_PADDING -0x6200
88#define MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280
89#define MBEDTLS_ERR_CIPHER_AUTH_FAILED -0x6300
90#define MBEDTLS_ERR_CIPHER_INVALID_CONTEXT -0x6380
92/* MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED is deprecated and should not be used. */
93#define MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED -0x6400
95#define MBEDTLS_CIPHER_VARIABLE_IV_LEN 0x01
96#define MBEDTLS_CIPHER_VARIABLE_KEY_LEN 0x02
98#ifdef __cplusplus
99extern "C" {
100#endif
101
109typedef enum {
121
129typedef enum {
205
207typedef enum {
220
222typedef enum {
229
231typedef enum {
236
237enum {
246};
247
249#define MBEDTLS_MAX_IV_LENGTH 16
251#define MBEDTLS_MAX_BLOCK_LENGTH 16
252
257
262
268{
273
276
281 unsigned int key_bitlen;
282
284 const char * name;
285
290 unsigned int iv_size;
291
296 int flags;
297
299 unsigned int block_size;
300
303
305
310{
313
316
321
322#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
326 void (*add_padding)( unsigned char *output, size_t olen, size_t data_len );
327 int (*get_padding)( unsigned char *input, size_t ilen, size_t *data_len );
328#endif
329
332
335
338 unsigned char iv[MBEDTLS_MAX_IV_LENGTH];
339
341 size_t iv_size;
342
345
346#if defined(MBEDTLS_CMAC_C)
348 mbedtls_cmac_context_t *cmac_ctx;
349#endif
351
359const int *mbedtls_cipher_list( void );
360
373
385
401 int key_bitlen,
403
410
421
422
442 const mbedtls_cipher_info_t *cipher_info );
443
452static inline unsigned int mbedtls_cipher_get_block_size(
454{
456 if( ctx->cipher_info == NULL )
457 return 0;
458
459 return ctx->cipher_info->block_size;
460}
461
473{
475 if( ctx->cipher_info == NULL )
476 return MBEDTLS_MODE_NONE;
477
478 return ctx->cipher_info->mode;
479}
480
493{
495 if( ctx->cipher_info == NULL )
496 return 0;
497
498 if( ctx->iv_size != 0 )
499 return (int) ctx->iv_size;
500
501 return (int) ctx->cipher_info->iv_size;
502}
503
514{
517 if( ctx->cipher_info == NULL )
518 return MBEDTLS_CIPHER_NONE;
519
520 return ctx->cipher_info->type;
521}
522
532static inline const char *mbedtls_cipher_get_name(
534{
536 if( ctx->cipher_info == NULL )
537 return 0;
538
539 return ctx->cipher_info->name;
540}
541
553{
556 if( ctx->cipher_info == NULL )
558
559 return (int) ctx->cipher_info->key_bitlen;
560}
561
572{
575 if( ctx->cipher_info == NULL )
577
578 return ctx->operation;
579}
580
598 const unsigned char *key,
599 int key_bitlen,
601
602#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
621#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */
622
642 const unsigned char *iv,
643 size_t iv_len );
644
655
656#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
672 const unsigned char *ad, size_t ad_len );
673#endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
674
710 size_t ilen, unsigned char *output, size_t *olen );
711
735 unsigned char *output, size_t *olen );
736
737#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
755 unsigned char *tag, size_t tag_len );
756
771 const unsigned char *tag, size_t tag_len );
772#endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
773
808 const unsigned char *iv, size_t iv_len,
809 const unsigned char *input, size_t ilen,
810 unsigned char *output, size_t *olen );
811
812#if defined(MBEDTLS_CIPHER_MODE_AEAD)
844 const unsigned char *iv, size_t iv_len,
845 const unsigned char *ad, size_t ad_len,
846 const unsigned char *input, size_t ilen,
847 unsigned char *output, size_t *olen,
848 unsigned char *tag, size_t tag_len );
849
886 const unsigned char *iv, size_t iv_len,
887 const unsigned char *ad, size_t ad_len,
888 const unsigned char *input, size_t ilen,
889 unsigned char *output, size_t *olen,
890 const unsigned char *tag, size_t tag_len );
891#endif /* MBEDTLS_CIPHER_MODE_AEAD */
892
893#ifdef __cplusplus
894}
895#endif
896
897#endif /* MBEDTLS_CIPHER_H */
operation
Definition: copy.c:29
int mbedtls_cipher_setup(mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info)
This function initializes and fills the cipher-context structure with the appropriate values....
mbedtls_cipher_type_t
Supported {cipher type, cipher mode} pairs.
Definition: cipher.h:129
@ MBEDTLS_CIPHER_AES_128_ECB
Definition: cipher.h:132
@ MBEDTLS_CIPHER_ARIA_256_CTR
Definition: cipher.h:190
@ MBEDTLS_CIPHER_CAMELLIA_128_GCM
Definition: cipher.h:159
@ MBEDTLS_CIPHER_AES_128_XTS
Definition: cipher.h:200
@ MBEDTLS_CIPHER_CHACHA20
Definition: cipher.h:202
@ MBEDTLS_CIPHER_DES_EDE3_CBC
Definition: cipher.h:167
@ MBEDTLS_CIPHER_DES_ECB
Definition: cipher.h:162
@ MBEDTLS_CIPHER_ARIA_128_GCM
Definition: cipher.h:191
@ MBEDTLS_CIPHER_AES_128_CBC
Definition: cipher.h:135
@ MBEDTLS_CIPHER_AES_192_GCM
Definition: cipher.h:145
@ MBEDTLS_CIPHER_BLOWFISH_CTR
Definition: cipher.h:171
@ MBEDTLS_CIPHER_AES_128_OFB
Definition: cipher.h:197
@ MBEDTLS_CIPHER_ARIA_192_ECB
Definition: cipher.h:180
@ MBEDTLS_CIPHER_CAMELLIA_256_GCM
Definition: cipher.h:161
@ MBEDTLS_CIPHER_DES_EDE_ECB
Definition: cipher.h:164
@ MBEDTLS_CIPHER_BLOWFISH_CFB64
Definition: cipher.h:170
@ MBEDTLS_CIPHER_ARIA_256_CFB128
Definition: cipher.h:187
@ MBEDTLS_CIPHER_ARIA_192_CBC
Definition: cipher.h:183
@ MBEDTLS_CIPHER_CAMELLIA_192_CBC
Definition: cipher.h:151
@ MBEDTLS_CIPHER_ARIA_128_CTR
Definition: cipher.h:188
@ MBEDTLS_CIPHER_ARIA_192_CCM
Definition: cipher.h:195
@ MBEDTLS_CIPHER_CAMELLIA_192_GCM
Definition: cipher.h:160
@ MBEDTLS_CIPHER_AES_192_OFB
Definition: cipher.h:198
@ MBEDTLS_CIPHER_AES_256_ECB
Definition: cipher.h:134
@ MBEDTLS_CIPHER_AES_256_CTR
Definition: cipher.h:143
@ MBEDTLS_CIPHER_AES_192_CCM
Definition: cipher.h:174
@ MBEDTLS_CIPHER_AES_128_CFB128
Definition: cipher.h:138
@ MBEDTLS_CIPHER_CAMELLIA_192_CFB128
Definition: cipher.h:154
@ MBEDTLS_CIPHER_CAMELLIA_128_CCM
Definition: cipher.h:176
@ MBEDTLS_CIPHER_AES_128_CTR
Definition: cipher.h:141
@ MBEDTLS_CIPHER_ARIA_192_GCM
Definition: cipher.h:192
@ MBEDTLS_CIPHER_AES_256_XTS
Definition: cipher.h:201
@ MBEDTLS_CIPHER_AES_192_CFB128
Definition: cipher.h:139
@ MBEDTLS_CIPHER_ARIA_256_ECB
Definition: cipher.h:181
@ MBEDTLS_CIPHER_CAMELLIA_256_CCM
Definition: cipher.h:178
@ MBEDTLS_CIPHER_AES_256_GCM
Definition: cipher.h:146
@ MBEDTLS_CIPHER_DES_CBC
Definition: cipher.h:163
@ MBEDTLS_CIPHER_CAMELLIA_128_CFB128
Definition: cipher.h:153
@ MBEDTLS_CIPHER_CAMELLIA_128_CBC
Definition: cipher.h:150
@ MBEDTLS_CIPHER_AES_256_CCM
Definition: cipher.h:175
@ MBEDTLS_CIPHER_CAMELLIA_256_CFB128
Definition: cipher.h:155
@ MBEDTLS_CIPHER_ARIA_192_CTR
Definition: cipher.h:189
@ MBEDTLS_CIPHER_BLOWFISH_CBC
Definition: cipher.h:169
@ MBEDTLS_CIPHER_CAMELLIA_256_ECB
Definition: cipher.h:149
@ MBEDTLS_CIPHER_AES_128_GCM
Definition: cipher.h:144
@ MBEDTLS_CIPHER_CAMELLIA_192_ECB
Definition: cipher.h:148
@ MBEDTLS_CIPHER_AES_256_CFB128
Definition: cipher.h:140
@ MBEDTLS_CIPHER_NONE
Definition: cipher.h:130
@ MBEDTLS_CIPHER_CHACHA20_POLY1305
Definition: cipher.h:203
@ MBEDTLS_CIPHER_CAMELLIA_128_ECB
Definition: cipher.h:147
@ MBEDTLS_CIPHER_AES_192_CBC
Definition: cipher.h:136
@ MBEDTLS_CIPHER_CAMELLIA_192_CCM
Definition: cipher.h:177
@ MBEDTLS_CIPHER_ARIA_128_CCM
Definition: cipher.h:194
@ MBEDTLS_CIPHER_AES_192_CTR
Definition: cipher.h:142
@ MBEDTLS_CIPHER_AES_128_CCM
Definition: cipher.h:173
@ MBEDTLS_CIPHER_DES_EDE_CBC
Definition: cipher.h:165
@ MBEDTLS_CIPHER_NULL
Definition: cipher.h:131
@ MBEDTLS_CIPHER_ARIA_256_CBC
Definition: cipher.h:184
@ MBEDTLS_CIPHER_AES_256_OFB
Definition: cipher.h:199
@ MBEDTLS_CIPHER_ARIA_192_CFB128
Definition: cipher.h:186
@ MBEDTLS_CIPHER_CAMELLIA_128_CTR
Definition: cipher.h:156
@ MBEDTLS_CIPHER_BLOWFISH_ECB
Definition: cipher.h:168
@ MBEDTLS_CIPHER_AES_256_CBC
Definition: cipher.h:137
@ MBEDTLS_CIPHER_ARC4_128
Definition: cipher.h:172
@ MBEDTLS_CIPHER_CAMELLIA_192_CTR
Definition: cipher.h:157
@ MBEDTLS_CIPHER_AES_192_ECB
Definition: cipher.h:133
@ MBEDTLS_CIPHER_ARIA_256_GCM
Definition: cipher.h:193
@ MBEDTLS_CIPHER_DES_EDE3_ECB
Definition: cipher.h:166
@ MBEDTLS_CIPHER_ARIA_128_CBC
Definition: cipher.h:182
@ MBEDTLS_CIPHER_CAMELLIA_256_CTR
Definition: cipher.h:158
@ MBEDTLS_CIPHER_ARIA_128_ECB
Definition: cipher.h:179
@ MBEDTLS_CIPHER_CAMELLIA_256_CBC
Definition: cipher.h:152
@ MBEDTLS_CIPHER_ARIA_256_CCM
Definition: cipher.h:196
@ MBEDTLS_CIPHER_ARIA_128_CFB128
Definition: cipher.h:185
int mbedtls_cipher_setkey(mbedtls_cipher_context_t *ctx, const unsigned char *key, int key_bitlen, const mbedtls_operation_t operation)
This function sets the key to use with the given context.
int mbedtls_cipher_crypt(mbedtls_cipher_context_t *ctx, const unsigned char *iv, size_t iv_len, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen)
The generic all-in-one encryption/decryption function, for all ciphers except AEAD constructs.
int mbedtls_cipher_reset(mbedtls_cipher_context_t *ctx)
This function resets the cipher state.
int mbedtls_cipher_set_iv(mbedtls_cipher_context_t *ctx, const unsigned char *iv, size_t iv_len)
This function sets the initialization vector (IV) or nonce.
mbedtls_cipher_padding_t
Definition: cipher.h:222
@ MBEDTLS_PADDING_ZEROS
Definition: cipher.h:226
@ MBEDTLS_PADDING_ONE_AND_ZEROS
Definition: cipher.h:224
@ MBEDTLS_PADDING_PKCS7
Definition: cipher.h:223
@ MBEDTLS_PADDING_ZEROS_AND_LEN
Definition: cipher.h:225
@ MBEDTLS_PADDING_NONE
Definition: cipher.h:227
int mbedtls_cipher_auth_encrypt(mbedtls_cipher_context_t *ctx, const unsigned char *iv, size_t iv_len, const unsigned char *ad, size_t ad_len, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen, unsigned char *tag, size_t tag_len)
The generic autenticated encryption (AEAD) function.
int mbedtls_cipher_finish(mbedtls_cipher_context_t *ctx, unsigned char *output, size_t *olen)
The generic cipher finalization function. If data still needs to be flushed from an incomplete block,...
static int mbedtls_cipher_get_key_bitlen(const mbedtls_cipher_context_t *ctx)
This function returns the key length of the cipher.
Definition: cipher.h:551
int mbedtls_cipher_auth_decrypt(mbedtls_cipher_context_t *ctx, const unsigned char *iv, size_t iv_len, const unsigned char *ad, size_t ad_len, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen, const unsigned char *tag, size_t tag_len)
The generic autenticated decryption (AEAD) function.
const mbedtls_cipher_info_t * mbedtls_cipher_info_from_values(const mbedtls_cipher_id_t cipher_id, int key_bitlen, const mbedtls_cipher_mode_t mode)
This function retrieves the cipher-information structure associated with the given cipher ID,...
void mbedtls_cipher_init(mbedtls_cipher_context_t *ctx)
This function initializes a cipher_context as NONE.
int mbedtls_cipher_update_ad(mbedtls_cipher_context_t *ctx, const unsigned char *ad, size_t ad_len)
This function adds additional data for AEAD ciphers. Currently supported with GCM and ChaCha20+Poly13...
int mbedtls_cipher_write_tag(mbedtls_cipher_context_t *ctx, unsigned char *tag, size_t tag_len)
This function writes a tag for AEAD ciphers. Currently supported with GCM and ChaCha20+Poly1305....
static mbedtls_operation_t mbedtls_cipher_get_operation(const mbedtls_cipher_context_t *ctx)
This function returns the operation of the given cipher.
Definition: cipher.h:570
void mbedtls_cipher_free(mbedtls_cipher_context_t *ctx)
This function frees and clears the cipher-specific context of ctx. Freeing ctx itself remains the res...
static int mbedtls_cipher_get_iv_size(const mbedtls_cipher_context_t *ctx)
This function returns the size of the IV or nonce of the cipher, in Bytes.
Definition: cipher.h:491
int mbedtls_cipher_update(mbedtls_cipher_context_t *ctx, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen)
The generic cipher update function. It encrypts or decrypts using the given cipher context....
@ MBEDTLS_KEY_LENGTH_DES
Definition: cipher.h:241
@ MBEDTLS_KEY_LENGTH_NONE
Definition: cipher.h:239
@ MBEDTLS_KEY_LENGTH_DES_EDE
Definition: cipher.h:243
@ MBEDTLS_KEY_LENGTH_DES_EDE3
Definition: cipher.h:245
static mbedtls_cipher_type_t mbedtls_cipher_get_type(const mbedtls_cipher_context_t *ctx)
This function returns the type of the given cipher.
Definition: cipher.h:512
static unsigned int mbedtls_cipher_get_block_size(const mbedtls_cipher_context_t *ctx)
This function returns the block size of the given cipher.
Definition: cipher.h:452
mbedtls_operation_t
Definition: cipher.h:231
@ MBEDTLS_DECRYPT
Definition: cipher.h:233
@ MBEDTLS_OPERATION_NONE
Definition: cipher.h:232
@ MBEDTLS_ENCRYPT
Definition: cipher.h:234
const mbedtls_cipher_info_t * mbedtls_cipher_info_from_string(const char *cipher_name)
This function retrieves the cipher-information structure associated with the given cipher name.
const int * mbedtls_cipher_list(void)
This function retrieves the list of ciphers supported by the generic cipher module.
static const char * mbedtls_cipher_get_name(const mbedtls_cipher_context_t *ctx)
This function returns the name of the given cipher as a string.
Definition: cipher.h:532
#define MBEDTLS_MAX_BLOCK_LENGTH
Definition: cipher.h:251
int mbedtls_cipher_check_tag(mbedtls_cipher_context_t *ctx, const unsigned char *tag, size_t tag_len)
This function checks the tag for AEAD ciphers. Currently supported with GCM and ChaCha20+Poly1305....
static mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode(const mbedtls_cipher_context_t *ctx)
This function returns the mode of operation for the cipher. For example, MBEDTLS_MODE_CBC.
Definition: cipher.h:471
mbedtls_cipher_mode_t
Definition: cipher.h:207
@ MBEDTLS_MODE_ECB
Definition: cipher.h:209
@ MBEDTLS_MODE_CCM
Definition: cipher.h:216
@ MBEDTLS_MODE_STREAM
Definition: cipher.h:215
@ MBEDTLS_MODE_NONE
Definition: cipher.h:208
@ MBEDTLS_MODE_CFB
Definition: cipher.h:211
@ MBEDTLS_MODE_CTR
Definition: cipher.h:213
@ MBEDTLS_MODE_GCM
Definition: cipher.h:214
@ MBEDTLS_MODE_CBC
Definition: cipher.h:210
@ MBEDTLS_MODE_OFB
Definition: cipher.h:212
@ MBEDTLS_MODE_CHACHAPOLY
Definition: cipher.h:218
@ MBEDTLS_MODE_XTS
Definition: cipher.h:217
#define MBEDTLS_MAX_IV_LENGTH
Definition: cipher.h:249
mbedtls_cipher_id_t
Supported cipher types.
Definition: cipher.h:109
@ MBEDTLS_CIPHER_ID_3DES
Definition: cipher.h:114
@ MBEDTLS_CIPHER_ID_CAMELLIA
Definition: cipher.h:115
@ MBEDTLS_CIPHER_ID_DES
Definition: cipher.h:113
@ MBEDTLS_CIPHER_ID_ARC4
Definition: cipher.h:117
@ MBEDTLS_CIPHER_ID_NULL
Definition: cipher.h:111
@ MBEDTLS_CIPHER_ID_AES
Definition: cipher.h:112
@ MBEDTLS_CIPHER_ID_ARIA
Definition: cipher.h:118
@ MBEDTLS_CIPHER_ID_NONE
Definition: cipher.h:110
@ MBEDTLS_CIPHER_ID_CHACHA20
Definition: cipher.h:119
@ MBEDTLS_CIPHER_ID_BLOWFISH
Definition: cipher.h:116
int mbedtls_cipher_set_padding_mode(mbedtls_cipher_context_t *ctx, mbedtls_cipher_padding_t mode)
This function sets the padding mode, for cipher modes that use padding.
#define NULL
Definition: types.h:112
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31
GLenum mode
Definition: glext.h:6217
GLenum GLenum GLenum input
Definition: glext.h:9031
Common and shared functions used by multiple modules in the Mbed TLS library.
#define MBEDTLS_INTERNAL_VALIDATE_RET(cond, ret)
#define mbedtls_cipher_info_from_type
Definition: copy.c:22
mbedtls_operation_t operation
Definition: cipher.h:320
unsigned char iv[MBEDTLS_MAX_IV_LENGTH]
Definition: cipher.h:338
void(* add_padding)(unsigned char *output, size_t olen, size_t data_len)
Definition: cipher.h:326
unsigned char unprocessed_data[MBEDTLS_MAX_BLOCK_LENGTH]
Definition: cipher.h:331
int(* get_padding)(unsigned char *input, size_t ilen, size_t *data_len)
Definition: cipher.h:327
const mbedtls_cipher_info_t * cipher_info
Definition: cipher.h:312
unsigned int key_bitlen
Definition: cipher.h:281
unsigned int iv_size
Definition: cipher.h:290
mbedtls_cipher_type_t type
Definition: cipher.h:272
mbedtls_cipher_mode_t mode
Definition: cipher.h:275
unsigned int block_size
Definition: cipher.h:299
const char * name
Definition: cipher.h:284
const mbedtls_cipher_base_t * base
Definition: cipher.h:302
Definition: ecma_167.h:138