mbed TLS v2.12.0

cipher.h
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1
10 /*
11 * Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
12 * SPDX-License-Identifier: Apache-2.0
13 *
14 * Licensed under the Apache License, Version 2.0 (the "License"); you may
15 * not use this file except in compliance with the License.
16 * You may obtain a copy of the License at
17 *
18 * http://www.apache.org/licenses/LICENSE-2.0
19 *
20 * Unless required by applicable law or agreed to in writing, software
21 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
22 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
23 * See the License for the specific language governing permissions and
24 * limitations under the License.
25 *
26 * This file is part of Mbed TLS (https://tls.mbed.org)
27 */
28
29 #ifndef MBEDTLS_CIPHER_H
30 #define MBEDTLS_CIPHER_H
31
32 #if !defined(MBEDTLS_CONFIG_FILE)
33 #include "config.h"
34 #else
35 #include MBEDTLS_CONFIG_FILE
36 #endif
37
38 #include <stddef.h>
39
40 #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
41 #define MBEDTLS_CIPHER_MODE_AEAD
42 #endif
43
44 #if defined(MBEDTLS_CIPHER_MODE_CBC)
45 #define MBEDTLS_CIPHER_MODE_WITH_PADDING
46 #endif
47
48 #if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER)
49 #define MBEDTLS_CIPHER_MODE_STREAM
50 #endif
51
52 #if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
53 !defined(inline) && !defined(__cplusplus)
54 #define inline __inline
55 #endif
56
57 #define MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE -0x6080
58 #define MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA -0x6100
59 #define MBEDTLS_ERR_CIPHER_ALLOC_FAILED -0x6180
60 #define MBEDTLS_ERR_CIPHER_INVALID_PADDING -0x6200
61 #define MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280
62 #define MBEDTLS_ERR_CIPHER_AUTH_FAILED -0x6300
63 #define MBEDTLS_ERR_CIPHER_INVALID_CONTEXT -0x6380
64 #define MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED -0x6400
66 #define MBEDTLS_CIPHER_VARIABLE_IV_LEN 0x01
67 #define MBEDTLS_CIPHER_VARIABLE_KEY_LEN 0x02
69 #ifdef __cplusplus
70 extern "C" {
71 #endif
72
80 typedef enum {
81 MBEDTLS_CIPHER_ID_NONE = 0,
82 MBEDTLS_CIPHER_ID_NULL,
83 MBEDTLS_CIPHER_ID_AES,
84 MBEDTLS_CIPHER_ID_DES,
85 MBEDTLS_CIPHER_ID_3DES,
86 MBEDTLS_CIPHER_ID_CAMELLIA,
87 MBEDTLS_CIPHER_ID_BLOWFISH,
88 MBEDTLS_CIPHER_ID_ARC4,
89 MBEDTLS_CIPHER_ID_ARIA,
90 MBEDTLS_CIPHER_ID_CHACHA20,
91 } mbedtls_cipher_id_t;
92
100 typedef enum {
101 MBEDTLS_CIPHER_NONE = 0,
102 MBEDTLS_CIPHER_NULL,
103 MBEDTLS_CIPHER_AES_128_ECB,
104 MBEDTLS_CIPHER_AES_192_ECB,
105 MBEDTLS_CIPHER_AES_256_ECB,
106 MBEDTLS_CIPHER_AES_128_CBC,
107 MBEDTLS_CIPHER_AES_192_CBC,
108 MBEDTLS_CIPHER_AES_256_CBC,
109 MBEDTLS_CIPHER_AES_128_CFB128,
110 MBEDTLS_CIPHER_AES_192_CFB128,
111 MBEDTLS_CIPHER_AES_256_CFB128,
112 MBEDTLS_CIPHER_AES_128_CTR,
113 MBEDTLS_CIPHER_AES_192_CTR,
114 MBEDTLS_CIPHER_AES_256_CTR,
115 MBEDTLS_CIPHER_AES_128_GCM,
116 MBEDTLS_CIPHER_AES_192_GCM,
117 MBEDTLS_CIPHER_AES_256_GCM,
118 MBEDTLS_CIPHER_CAMELLIA_128_ECB,
119 MBEDTLS_CIPHER_CAMELLIA_192_ECB,
120 MBEDTLS_CIPHER_CAMELLIA_256_ECB,
121 MBEDTLS_CIPHER_CAMELLIA_128_CBC,
122 MBEDTLS_CIPHER_CAMELLIA_192_CBC,
123 MBEDTLS_CIPHER_CAMELLIA_256_CBC,
124 MBEDTLS_CIPHER_CAMELLIA_128_CFB128,
125 MBEDTLS_CIPHER_CAMELLIA_192_CFB128,
126 MBEDTLS_CIPHER_CAMELLIA_256_CFB128,
127 MBEDTLS_CIPHER_CAMELLIA_128_CTR,
128 MBEDTLS_CIPHER_CAMELLIA_192_CTR,
129 MBEDTLS_CIPHER_CAMELLIA_256_CTR,
130 MBEDTLS_CIPHER_CAMELLIA_128_GCM,
131 MBEDTLS_CIPHER_CAMELLIA_192_GCM,
132 MBEDTLS_CIPHER_CAMELLIA_256_GCM,
133 MBEDTLS_CIPHER_DES_ECB,
134 MBEDTLS_CIPHER_DES_CBC,
135 MBEDTLS_CIPHER_DES_EDE_ECB,
136 MBEDTLS_CIPHER_DES_EDE_CBC,
137 MBEDTLS_CIPHER_DES_EDE3_ECB,
138 MBEDTLS_CIPHER_DES_EDE3_CBC,
139 MBEDTLS_CIPHER_BLOWFISH_ECB,
140 MBEDTLS_CIPHER_BLOWFISH_CBC,
141 MBEDTLS_CIPHER_BLOWFISH_CFB64,
142 MBEDTLS_CIPHER_BLOWFISH_CTR,
143 MBEDTLS_CIPHER_ARC4_128,
144 MBEDTLS_CIPHER_AES_128_CCM,
145 MBEDTLS_CIPHER_AES_192_CCM,
146 MBEDTLS_CIPHER_AES_256_CCM,
147 MBEDTLS_CIPHER_CAMELLIA_128_CCM,
148 MBEDTLS_CIPHER_CAMELLIA_192_CCM,
149 MBEDTLS_CIPHER_CAMELLIA_256_CCM,
150 MBEDTLS_CIPHER_ARIA_128_ECB,
151 MBEDTLS_CIPHER_ARIA_192_ECB,
152 MBEDTLS_CIPHER_ARIA_256_ECB,
153 MBEDTLS_CIPHER_ARIA_128_CBC,
154 MBEDTLS_CIPHER_ARIA_192_CBC,
155 MBEDTLS_CIPHER_ARIA_256_CBC,
156 MBEDTLS_CIPHER_ARIA_128_CFB128,
157 MBEDTLS_CIPHER_ARIA_192_CFB128,
158 MBEDTLS_CIPHER_ARIA_256_CFB128,
159 MBEDTLS_CIPHER_ARIA_128_CTR,
160 MBEDTLS_CIPHER_ARIA_192_CTR,
161 MBEDTLS_CIPHER_ARIA_256_CTR,
162 MBEDTLS_CIPHER_ARIA_128_GCM,
163 MBEDTLS_CIPHER_ARIA_192_GCM,
164 MBEDTLS_CIPHER_ARIA_256_GCM,
165 MBEDTLS_CIPHER_ARIA_128_CCM,
166 MBEDTLS_CIPHER_ARIA_192_CCM,
167 MBEDTLS_CIPHER_ARIA_256_CCM,
168 MBEDTLS_CIPHER_AES_128_OFB,
169 MBEDTLS_CIPHER_AES_192_OFB,
170 MBEDTLS_CIPHER_AES_256_OFB,
171 MBEDTLS_CIPHER_AES_128_XTS,
172 MBEDTLS_CIPHER_AES_256_XTS,
173 MBEDTLS_CIPHER_CHACHA20,
174 MBEDTLS_CIPHER_CHACHA20_POLY1305,
175 } mbedtls_cipher_type_t;
176
178 typedef enum {
179 MBEDTLS_MODE_NONE = 0,
180 MBEDTLS_MODE_ECB,
181 MBEDTLS_MODE_CBC,
182 MBEDTLS_MODE_CFB,
183 MBEDTLS_MODE_OFB,
184 MBEDTLS_MODE_CTR,
185 MBEDTLS_MODE_GCM,
186 MBEDTLS_MODE_STREAM,
187 MBEDTLS_MODE_CCM,
188 MBEDTLS_MODE_XTS,
189 MBEDTLS_MODE_CHACHAPOLY,
190 } mbedtls_cipher_mode_t;
191
193 typedef enum {
194 MBEDTLS_PADDING_PKCS7 = 0,
195 MBEDTLS_PADDING_ONE_AND_ZEROS,
196 MBEDTLS_PADDING_ZEROS_AND_LEN,
197 MBEDTLS_PADDING_ZEROS,
198 MBEDTLS_PADDING_NONE,
199 } mbedtls_cipher_padding_t;
200
202 typedef enum {
203 MBEDTLS_OPERATION_NONE = -1,
204 MBEDTLS_DECRYPT = 0,
205 MBEDTLS_ENCRYPT,
206 } mbedtls_operation_t;
207
208 enum {
210 MBEDTLS_KEY_LENGTH_NONE = 0,
212 MBEDTLS_KEY_LENGTH_DES = 64,
214 MBEDTLS_KEY_LENGTH_DES_EDE = 128,
216 MBEDTLS_KEY_LENGTH_DES_EDE3 = 192,
217 };
218
220 #define MBEDTLS_MAX_IV_LENGTH 16
221
222 #define MBEDTLS_MAX_BLOCK_LENGTH 16
223
227 typedef struct mbedtls_cipher_base_t mbedtls_cipher_base_t;
228
232 typedef struct mbedtls_cmac_context_t mbedtls_cmac_context_t;
233
238 typedef struct {
242 mbedtls_cipher_type_t type;
243
245 mbedtls_cipher_mode_t mode;
246
251 unsigned int key_bitlen;
252
254 const char * name;
255
260 unsigned int iv_size;
261
266 int flags;
267
269 unsigned int block_size;
270
272 const mbedtls_cipher_base_t *base;
273
274 } mbedtls_cipher_info_t;
275
279 typedef struct {
281 const mbedtls_cipher_info_t *cipher_info;
282
284 int key_bitlen;
285
289 mbedtls_operation_t operation;
290
291 #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
292
295 void (*add_padding)( unsigned char *output, size_t olen, size_t data_len );
296 int (*get_padding)( unsigned char *input, size_t ilen, size_t *data_len );
297 #endif
298
300 unsigned char unprocessed_data[MBEDTLS_MAX_BLOCK_LENGTH];
301
303 size_t unprocessed_len;
304
307 unsigned char iv[MBEDTLS_MAX_IV_LENGTH];
308
310 size_t iv_size;
311
313 void *cipher_ctx;
314
315 #if defined(MBEDTLS_CMAC_C)
316
317 mbedtls_cmac_context_t *cmac_ctx;
318 #endif
319 } mbedtls_cipher_context_t;
320
328 const int *mbedtls_cipher_list( void );
329
340 const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string( const char *cipher_name );
341
352 const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type( const mbedtls_cipher_type_t cipher_type );
353
368 const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values( const mbedtls_cipher_id_t cipher_id,
369 int key_bitlen,
370 const mbedtls_cipher_mode_t mode );
371
375 void mbedtls_cipher_init( mbedtls_cipher_context_t *ctx );
376
382 void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx );
383
384
403 int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info );
404
413 static inline unsigned int mbedtls_cipher_get_block_size( const mbedtls_cipher_context_t *ctx )
414 {
415 if( NULL == ctx || NULL == ctx->cipher_info )
416 return 0;
417
418 return ctx->cipher_info->block_size;
419 }
420
430 static inline mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode( const mbedtls_cipher_context_t *ctx )
431 {
432 if( NULL == ctx || NULL == ctx->cipher_info )
433 return MBEDTLS_MODE_NONE;
434
435 return ctx->cipher_info->mode;
436 }
437
448 static inline int mbedtls_cipher_get_iv_size( const mbedtls_cipher_context_t *ctx )
449 {
450 if( NULL == ctx || NULL == ctx->cipher_info )
451 return 0;
452
453 if( ctx->iv_size != 0 )
454 return (int) ctx->iv_size;
455
456 return (int) ctx->cipher_info->iv_size;
457 }
458
467 static inline mbedtls_cipher_type_t mbedtls_cipher_get_type( const mbedtls_cipher_context_t *ctx )
468 {
469 if( NULL == ctx || NULL == ctx->cipher_info )
470 return MBEDTLS_CIPHER_NONE;
471
472 return ctx->cipher_info->type;
473 }
474
484 static inline const char *mbedtls_cipher_get_name( const mbedtls_cipher_context_t *ctx )
485 {
486 if( NULL == ctx || NULL == ctx->cipher_info )
487 return 0;
488
489 return ctx->cipher_info->name;
490 }
491
501 static inline int mbedtls_cipher_get_key_bitlen( const mbedtls_cipher_context_t *ctx )
502 {
503 if( NULL == ctx || NULL == ctx->cipher_info )
504 return MBEDTLS_KEY_LENGTH_NONE;
505
506 return (int) ctx->cipher_info->key_bitlen;
507 }
508
517 static inline mbedtls_operation_t mbedtls_cipher_get_operation( const mbedtls_cipher_context_t *ctx )
518 {
519 if( NULL == ctx || NULL == ctx->cipher_info )
520 return MBEDTLS_OPERATION_NONE;
521
522 return ctx->operation;
523 }
524
541 int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx, const unsigned char *key,
542 int key_bitlen, const mbedtls_operation_t operation );
543
544 #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
545
560 int mbedtls_cipher_set_padding_mode( mbedtls_cipher_context_t *ctx, mbedtls_cipher_padding_t mode );
561 #endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */
562
579 int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx,
580 const unsigned char *iv, size_t iv_len );
581
591 int mbedtls_cipher_reset( mbedtls_cipher_context_t *ctx );
592
593 #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
594
606 int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx,
607 const unsigned char *ad, size_t ad_len );
608 #endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
609
641 int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *input,
642 size_t ilen, unsigned char *output, size_t *olen );
643
663 int mbedtls_cipher_finish( mbedtls_cipher_context_t *ctx,
664 unsigned char *output, size_t *olen );
665
666 #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
667
679 int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx,
680 unsigned char *tag, size_t tag_len );
681
694 int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx,
695 const unsigned char *tag, size_t tag_len );
696 #endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
697
727 int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
728 const unsigned char *iv, size_t iv_len,
729 const unsigned char *input, size_t ilen,
730 unsigned char *output, size_t *olen );
731
732 #if defined(MBEDTLS_CIPHER_MODE_AEAD)
733
756 int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx,
757 const unsigned char *iv, size_t iv_len,
758 const unsigned char *ad, size_t ad_len,
759 const unsigned char *input, size_t ilen,
760 unsigned char *output, size_t *olen,
761 unsigned char *tag, size_t tag_len );
762
791 int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
792 const unsigned char *iv, size_t iv_len,
793 const unsigned char *ad, size_t ad_len,
794 const unsigned char *input, size_t ilen,
795 unsigned char *output, size_t *olen,
796 const unsigned char *tag, size_t tag_len );
797 #endif /* MBEDTLS_CIPHER_MODE_AEAD */
798
799 #ifdef __cplusplus
800 }
801 #endif
802
803 #endif /* MBEDTLS_CIPHER_H */
MBEDTLS_CIPHER_CAMELLIA_128_CTR
Definition: cipher.h:127
MBEDTLS_CIPHER_ID_3DES
Definition: cipher.h:85
MBEDTLS_CIPHER_AES_128_GCM
Definition: cipher.h:115
MBEDTLS_CIPHER_DES_EDE_ECB
Definition: cipher.h:135
MBEDTLS_CIPHER_AES_128_CCM
Definition: cipher.h:144
MBEDTLS_CIPHER_ARIA_256_CTR
Definition: cipher.h:161
mbedtls_operation_t
mbedtls_operation_t
Definition: cipher.h:202
MBEDTLS_CIPHER_CAMELLIA_256_CFB128
Definition: cipher.h:126
mbedtls_cipher_info_t::iv_size
unsigned int iv_size
Definition: cipher.h:260
MBEDTLS_KEY_LENGTH_DES_EDE
Definition: cipher.h:214
MBEDTLS_CIPHER_ARIA_128_GCM
Definition: cipher.h:162
MBEDTLS_CIPHER_NONE
Definition: cipher.h:101
MBEDTLS_CIPHER_AES_128_CBC
Definition: cipher.h:106
mbedtls_cipher_padding_t
mbedtls_cipher_padding_t
Definition: cipher.h:193
MBEDTLS_PADDING_NONE
Definition: cipher.h:198
mbedtls_cipher_get_cipher_mode
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:430
MBEDTLS_CIPHER_AES_192_CBC
Definition: cipher.h:107
MBEDTLS_CIPHER_ID_ARIA
Definition: cipher.h:89
MBEDTLS_CIPHER_CAMELLIA_128_GCM
Definition: cipher.h:130
mbedtls_cipher_info_t::flags
int flags
Definition: cipher.h:266
mbedtls_cipher_get_block_size
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:413
MBEDTLS_CIPHER_ARIA_256_CBC
Definition: cipher.h:155
mbedtls_cipher_mode_t
mbedtls_cipher_mode_t
Definition: cipher.h:178
MBEDTLS_MODE_OFB
Definition: cipher.h:183
MBEDTLS_CIPHER_NULL
Definition: cipher.h:102
MBEDTLS_CIPHER_CAMELLIA_128_CCM
Definition: cipher.h:147
mbedtls_cmac_context_t
Definition: cmac.h:53
MBEDTLS_CIPHER_ARIA_192_CCM
Definition: cipher.h:166
mbedtls_cipher_info_from_string
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...
mbedtls_cipher_finish
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...
mbedtls_cipher_context_t
Definition: cipher.h:279
mbedtls_cipher_reset
int mbedtls_cipher_reset(mbedtls_cipher_context_t *ctx)
This function resets the cipher state.
MBEDTLS_CIPHER_CAMELLIA_256_ECB
Definition: cipher.h:120
MBEDTLS_CIPHER_CAMELLIA_192_CCM
Definition: cipher.h:148
MBEDTLS_CIPHER_AES_256_XTS
Definition: cipher.h:172
MBEDTLS_CIPHER_CAMELLIA_192_CFB128
Definition: cipher.h:125
mbedtls_cipher_get_name
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:484
MBEDTLS_MODE_CTR
Definition: cipher.h:184
MBEDTLS_CIPHER_AES_256_CFB128
Definition: cipher.h:111
config.h
Configuration options (set of defines)
MBEDTLS_CIPHER_BLOWFISH_CTR
Definition: cipher.h:142
mbedtls_cipher_set_iv
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_info_t
Definition: cipher.h:238
MBEDTLS_CIPHER_AES_192_ECB
Definition: cipher.h:104
MBEDTLS_CIPHER_ARIA_256_CFB128
Definition: cipher.h:158
MBEDTLS_CIPHER_ID_CHACHA20
Definition: cipher.h:90
MBEDTLS_MODE_CHACHAPOLY
Definition: cipher.h:189
mbedtls_cipher_set_padding_mode
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.
MBEDTLS_CIPHER_ARIA_192_ECB
Definition: cipher.h:151
mbedtls_cipher_info_t::mode
mbedtls_cipher_mode_t mode
Definition: cipher.h:245
mbedtls_cipher_update
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_cipher_info_t::block_size
unsigned int block_size
Definition: cipher.h:269
mbedtls_cipher_free
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...
mbedtls_cipher_get_operation
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:517
mbedtls_cipher_list
const int * mbedtls_cipher_list(void)
This function retrieves the list of ciphers supported by the generic cipher module.
MBEDTLS_PADDING_ZEROS_AND_LEN
Definition: cipher.h:196
mbedtls_cipher_get_key_bitlen
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:501
MBEDTLS_CIPHER_ARIA_192_CFB128
Definition: cipher.h:157
mbedtls_cipher_type_t
mbedtls_cipher_type_t
Supported {cipher type, cipher mode} pairs.
Definition: cipher.h:100
MBEDTLS_CIPHER_CAMELLIA_256_CBC
Definition: cipher.h:123
MBEDTLS_CIPHER_CAMELLIA_128_ECB
Definition: cipher.h:118
MBEDTLS_ENCRYPT
Definition: cipher.h:205
mbedtls_cipher_context_t::cipher_info
const mbedtls_cipher_info_t * cipher_info
Definition: cipher.h:281
MBEDTLS_CIPHER_AES_128_CFB128
Definition: cipher.h:109
MBEDTLS_CIPHER_BLOWFISH_CBC
Definition: cipher.h:140
MBEDTLS_PADDING_ZEROS
Definition: cipher.h:197
MBEDTLS_CIPHER_CHACHA20
Definition: cipher.h:173
mbedtls_cipher_base_t
struct mbedtls_cipher_base_t mbedtls_cipher_base_t
Definition: cipher.h:227
mbedtls_cipher_info_from_values
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...
MBEDTLS_CIPHER_ID_CAMELLIA
Definition: cipher.h:86
MBEDTLS_CIPHER_ID_ARC4
Definition: cipher.h:88
MBEDTLS_KEY_LENGTH_DES_EDE3
Definition: cipher.h:216
MBEDTLS_CIPHER_DES_CBC
Definition: cipher.h:134
mbedtls_cipher_get_type
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:467
MBEDTLS_KEY_LENGTH_NONE
Definition: cipher.h:210
MBEDTLS_MODE_STREAM
Definition: cipher.h:186
MBEDTLS_CIPHER_ID_NONE
Definition: cipher.h:81
mbedtls_cipher_context_t::cipher_ctx
void * cipher_ctx
Definition: cipher.h:313
MBEDTLS_CIPHER_AES_256_CBC
Definition: cipher.h:108
MBEDTLS_CIPHER_CAMELLIA_256_CCM
Definition: cipher.h:149
MBEDTLS_CIPHER_CAMELLIA_192_ECB
Definition: cipher.h:119
MBEDTLS_MODE_CFB
Definition: cipher.h:182
MBEDTLS_PADDING_ONE_AND_ZEROS
Definition: cipher.h:195
mbedtls_cipher_context_t::operation
mbedtls_operation_t operation
Definition: cipher.h:289
MBEDTLS_CIPHER_AES_256_GCM
Definition: cipher.h:117
MBEDTLS_CIPHER_CAMELLIA_192_CTR
Definition: cipher.h:128
MBEDTLS_MODE_CCM
Definition: cipher.h:187
MBEDTLS_DECRYPT
Definition: cipher.h:204
mbedtls_cipher_id_t
mbedtls_cipher_id_t
Supported cipher types.
Definition: cipher.h:80
MBEDTLS_MODE_XTS
Definition: cipher.h:188
MBEDTLS_CIPHER_CAMELLIA_192_CBC
Definition: cipher.h:122
mbedtls_cipher_setkey
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.
MBEDTLS_CIPHER_AES_256_ECB
Definition: cipher.h:105
MBEDTLS_CIPHER_CAMELLIA_256_GCM
Definition: cipher.h:132
MBEDTLS_CIPHER_AES_128_OFB
Definition: cipher.h:168
MBEDTLS_CIPHER_BLOWFISH_CFB64
Definition: cipher.h:141
MBEDTLS_MAX_IV_LENGTH
#define MBEDTLS_MAX_IV_LENGTH
Definition: cipher.h:220
MBEDTLS_CIPHER_ARIA_256_ECB
Definition: cipher.h:152
MBEDTLS_CIPHER_ARIA_256_GCM
Definition: cipher.h:164
MBEDTLS_CIPHER_CAMELLIA_128_CFB128
Definition: cipher.h:124
MBEDTLS_CIPHER_ARC4_128
Definition: cipher.h:143
MBEDTLS_CIPHER_DES_EDE_CBC
Definition: cipher.h:136
mbedtls_cipher_context_t::unprocessed_len
size_t unprocessed_len
Definition: cipher.h:303
MBEDTLS_CIPHER_CAMELLIA_192_GCM
Definition: cipher.h:131
mbedtls_cipher_auth_decrypt
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.
mbedtls_cipher_info_t::name
const char * name
Definition: cipher.h:254
MBEDTLS_CIPHER_BLOWFISH_ECB
Definition: cipher.h:139
MBEDTLS_MODE_CBC
Definition: cipher.h:181
MBEDTLS_CIPHER_ARIA_128_CBC
Definition: cipher.h:153
MBEDTLS_CIPHER_AES_128_CTR
Definition: cipher.h:112
MBEDTLS_CIPHER_CHACHA20_POLY1305
Definition: cipher.h:174
mbedtls_cipher_auth_encrypt
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.
MBEDTLS_MODE_GCM
Definition: cipher.h:185
MBEDTLS_MODE_ECB
Definition: cipher.h:180
MBEDTLS_CIPHER_ID_AES
Definition: cipher.h:83
MBEDTLS_CIPHER_AES_192_CCM
Definition: cipher.h:145
MBEDTLS_PADDING_PKCS7
Definition: cipher.h:194
mbedtls_cipher_crypt
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...
MBEDTLS_OPERATION_NONE
Definition: cipher.h:203
MBEDTLS_CIPHER_ARIA_128_CCM
Definition: cipher.h:165
MBEDTLS_CIPHER_CAMELLIA_128_CBC
Definition: cipher.h:121
mbedtls_cipher_context_t::key_bitlen
int key_bitlen
Definition: cipher.h:284
mbedtls_cipher_init
void mbedtls_cipher_init(mbedtls_cipher_context_t *ctx)
This function initializes a cipher_context as NONE.
MBEDTLS_CIPHER_AES_192_OFB
Definition: cipher.h:169
MBEDTLS_CIPHER_DES_EDE3_CBC
Definition: cipher.h:138
MBEDTLS_CIPHER_ARIA_128_CFB128
Definition: cipher.h:156
mbedtls_cipher_update_ad
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...
MBEDTLS_CIPHER_ID_NULL
Definition: cipher.h:82
MBEDTLS_CIPHER_AES_128_XTS
Definition: cipher.h:171
MBEDTLS_CIPHER_ID_BLOWFISH
Definition: cipher.h:87
mbedtls_cipher_setup
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_ARIA_192_CBC
Definition: cipher.h:154
MBEDTLS_CIPHER_DES_EDE3_ECB
Definition: cipher.h:137
MBEDTLS_CIPHER_AES_192_CTR
Definition: cipher.h:113
MBEDTLS_CIPHER_DES_ECB
Definition: cipher.h:133
mbedtls_cipher_check_tag
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. Must be called after mbedtls_cipher_finish().
mbedtls_cipher_get_iv_size
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:448
MBEDTLS_KEY_LENGTH_DES
Definition: cipher.h:212
MBEDTLS_CIPHER_ARIA_128_ECB
Definition: cipher.h:150
MBEDTLS_CIPHER_ARIA_128_CTR
Definition: cipher.h:159
mbedtls_cipher_write_tag
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. Must be called after mbedtls_cipher_finish().
MBEDTLS_CIPHER_AES_192_GCM
Definition: cipher.h:116
mbedtls_cipher_context_t::iv_size
size_t iv_size
Definition: cipher.h:310
MBEDTLS_MAX_BLOCK_LENGTH
#define MBEDTLS_MAX_BLOCK_LENGTH
Definition: cipher.h:222
MBEDTLS_CIPHER_ARIA_192_CTR
Definition: cipher.h:160
MBEDTLS_CIPHER_AES_128_ECB
Definition: cipher.h:103
MBEDTLS_CIPHER_AES_256_CTR
Definition: cipher.h:114
MBEDTLS_CIPHER_AES_256_OFB
Definition: cipher.h:170
MBEDTLS_CIPHER_CAMELLIA_256_CTR
Definition: cipher.h:129
MBEDTLS_MODE_NONE
Definition: cipher.h:179
MBEDTLS_CIPHER_ARIA_192_GCM
Definition: cipher.h:163
MBEDTLS_CIPHER_ID_DES
Definition: cipher.h:84
MBEDTLS_CIPHER_AES_192_CFB128
Definition: cipher.h:110
mbedtls_cipher_info_t::key_bitlen
unsigned int key_bitlen
Definition: cipher.h:251
mbedtls_cipher_info_t::type
mbedtls_cipher_type_t type
Definition: cipher.h:242
mbedtls_cipher_info_from_type
const mbedtls_cipher_info_t * mbedtls_cipher_info_from_type(const mbedtls_cipher_type_t cipher_type)
This function retrieves the cipher-information structure associated with the given cipher type...
mbedtls_cipher_info_t::base
const mbedtls_cipher_base_t * base
Definition: cipher.h:272
MBEDTLS_CIPHER_ARIA_256_CCM
Definition: cipher.h:167
MBEDTLS_CIPHER_AES_256_CCM
Definition: cipher.h:146