mbed TLS v2.16.3: cipher.h Source File

mbed TLS v2.16.3

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 #include "platform_util.h"
40
41 #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
42 #define MBEDTLS_CIPHER_MODE_AEAD
43 #endif
44
45 #if defined(MBEDTLS_CIPHER_MODE_CBC)
46 #define MBEDTLS_CIPHER_MODE_WITH_PADDING
47 #endif
48
49 #if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) || \
50 defined(MBEDTLS_CHACHA20_C)
51 #define MBEDTLS_CIPHER_MODE_STREAM
52 #endif
53
54 #if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
55 !defined(inline) && !defined(__cplusplus)
56 #define inline __inline
57 #endif
58
59 #define MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE -0x6080
60 #define MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA -0x6100
61 #define MBEDTLS_ERR_CIPHER_ALLOC_FAILED -0x6180
62 #define MBEDTLS_ERR_CIPHER_INVALID_PADDING -0x6200
63 #define MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280
64 #define MBEDTLS_ERR_CIPHER_AUTH_FAILED -0x6300
65 #define MBEDTLS_ERR_CIPHER_INVALID_CONTEXT -0x6380
67 /* MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED is deprecated and should not be used. */
68 #define MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED -0x6400
70 #define MBEDTLS_CIPHER_VARIABLE_IV_LEN 0x01
71 #define MBEDTLS_CIPHER_VARIABLE_KEY_LEN 0x02
73 #ifdef __cplusplus
74 extern "C" {
75 #endif
76
84 typedef enum {
85 MBEDTLS_CIPHER_ID_NONE = 0,
86 MBEDTLS_CIPHER_ID_NULL,
87 MBEDTLS_CIPHER_ID_AES,
88 MBEDTLS_CIPHER_ID_DES,
89 MBEDTLS_CIPHER_ID_3DES,
90 MBEDTLS_CIPHER_ID_CAMELLIA,
91 MBEDTLS_CIPHER_ID_BLOWFISH,
92 MBEDTLS_CIPHER_ID_ARC4,
93 MBEDTLS_CIPHER_ID_ARIA,
94 MBEDTLS_CIPHER_ID_CHACHA20,
95 } mbedtls_cipher_id_t;
96
104 typedef enum {
105 MBEDTLS_CIPHER_NONE = 0,
106 MBEDTLS_CIPHER_NULL,
107 MBEDTLS_CIPHER_AES_128_ECB,
108 MBEDTLS_CIPHER_AES_192_ECB,
109 MBEDTLS_CIPHER_AES_256_ECB,
110 MBEDTLS_CIPHER_AES_128_CBC,
111 MBEDTLS_CIPHER_AES_192_CBC,
112 MBEDTLS_CIPHER_AES_256_CBC,
113 MBEDTLS_CIPHER_AES_128_CFB128,
114 MBEDTLS_CIPHER_AES_192_CFB128,
115 MBEDTLS_CIPHER_AES_256_CFB128,
116 MBEDTLS_CIPHER_AES_128_CTR,
117 MBEDTLS_CIPHER_AES_192_CTR,
118 MBEDTLS_CIPHER_AES_256_CTR,
119 MBEDTLS_CIPHER_AES_128_GCM,
120 MBEDTLS_CIPHER_AES_192_GCM,
121 MBEDTLS_CIPHER_AES_256_GCM,
122 MBEDTLS_CIPHER_CAMELLIA_128_ECB,
123 MBEDTLS_CIPHER_CAMELLIA_192_ECB,
124 MBEDTLS_CIPHER_CAMELLIA_256_ECB,
125 MBEDTLS_CIPHER_CAMELLIA_128_CBC,
126 MBEDTLS_CIPHER_CAMELLIA_192_CBC,
127 MBEDTLS_CIPHER_CAMELLIA_256_CBC,
128 MBEDTLS_CIPHER_CAMELLIA_128_CFB128,
129 MBEDTLS_CIPHER_CAMELLIA_192_CFB128,
130 MBEDTLS_CIPHER_CAMELLIA_256_CFB128,
131 MBEDTLS_CIPHER_CAMELLIA_128_CTR,
132 MBEDTLS_CIPHER_CAMELLIA_192_CTR,
133 MBEDTLS_CIPHER_CAMELLIA_256_CTR,
134 MBEDTLS_CIPHER_CAMELLIA_128_GCM,
135 MBEDTLS_CIPHER_CAMELLIA_192_GCM,
136 MBEDTLS_CIPHER_CAMELLIA_256_GCM,
137 MBEDTLS_CIPHER_DES_ECB,
138 MBEDTLS_CIPHER_DES_CBC,
139 MBEDTLS_CIPHER_DES_EDE_ECB,
140 MBEDTLS_CIPHER_DES_EDE_CBC,
141 MBEDTLS_CIPHER_DES_EDE3_ECB,
142 MBEDTLS_CIPHER_DES_EDE3_CBC,
143 MBEDTLS_CIPHER_BLOWFISH_ECB,
144 MBEDTLS_CIPHER_BLOWFISH_CBC,
145 MBEDTLS_CIPHER_BLOWFISH_CFB64,
146 MBEDTLS_CIPHER_BLOWFISH_CTR,
147 MBEDTLS_CIPHER_ARC4_128,
148 MBEDTLS_CIPHER_AES_128_CCM,
149 MBEDTLS_CIPHER_AES_192_CCM,
150 MBEDTLS_CIPHER_AES_256_CCM,
151 MBEDTLS_CIPHER_CAMELLIA_128_CCM,
152 MBEDTLS_CIPHER_CAMELLIA_192_CCM,
153 MBEDTLS_CIPHER_CAMELLIA_256_CCM,
154 MBEDTLS_CIPHER_ARIA_128_ECB,
155 MBEDTLS_CIPHER_ARIA_192_ECB,
156 MBEDTLS_CIPHER_ARIA_256_ECB,
157 MBEDTLS_CIPHER_ARIA_128_CBC,
158 MBEDTLS_CIPHER_ARIA_192_CBC,
159 MBEDTLS_CIPHER_ARIA_256_CBC,
160 MBEDTLS_CIPHER_ARIA_128_CFB128,
161 MBEDTLS_CIPHER_ARIA_192_CFB128,
162 MBEDTLS_CIPHER_ARIA_256_CFB128,
163 MBEDTLS_CIPHER_ARIA_128_CTR,
164 MBEDTLS_CIPHER_ARIA_192_CTR,
165 MBEDTLS_CIPHER_ARIA_256_CTR,
166 MBEDTLS_CIPHER_ARIA_128_GCM,
167 MBEDTLS_CIPHER_ARIA_192_GCM,
168 MBEDTLS_CIPHER_ARIA_256_GCM,
169 MBEDTLS_CIPHER_ARIA_128_CCM,
170 MBEDTLS_CIPHER_ARIA_192_CCM,
171 MBEDTLS_CIPHER_ARIA_256_CCM,
172 MBEDTLS_CIPHER_AES_128_OFB,
173 MBEDTLS_CIPHER_AES_192_OFB,
174 MBEDTLS_CIPHER_AES_256_OFB,
175 MBEDTLS_CIPHER_AES_128_XTS,
176 MBEDTLS_CIPHER_AES_256_XTS,
177 MBEDTLS_CIPHER_CHACHA20,
178 MBEDTLS_CIPHER_CHACHA20_POLY1305,
179 } mbedtls_cipher_type_t;
180
182 typedef enum {
183 MBEDTLS_MODE_NONE = 0,
184 MBEDTLS_MODE_ECB,
185 MBEDTLS_MODE_CBC,
186 MBEDTLS_MODE_CFB,
187 MBEDTLS_MODE_OFB,
188 MBEDTLS_MODE_CTR,
189 MBEDTLS_MODE_GCM,
190 MBEDTLS_MODE_STREAM,
191 MBEDTLS_MODE_CCM,
192 MBEDTLS_MODE_XTS,
193 MBEDTLS_MODE_CHACHAPOLY,
194 } mbedtls_cipher_mode_t;
195
197 typedef enum {
198 MBEDTLS_PADDING_PKCS7 = 0,
199 MBEDTLS_PADDING_ONE_AND_ZEROS,
200 MBEDTLS_PADDING_ZEROS_AND_LEN,
201 MBEDTLS_PADDING_ZEROS,
202 MBEDTLS_PADDING_NONE,
203 } mbedtls_cipher_padding_t;
204
206 typedef enum {
207 MBEDTLS_OPERATION_NONE = -1,
208 MBEDTLS_DECRYPT = 0,
209 MBEDTLS_ENCRYPT,
210 } mbedtls_operation_t;
211
212 enum {
214 MBEDTLS_KEY_LENGTH_NONE = 0,
216 MBEDTLS_KEY_LENGTH_DES = 64,
218 MBEDTLS_KEY_LENGTH_DES_EDE = 128,
220 MBEDTLS_KEY_LENGTH_DES_EDE3 = 192,
221 };
222
224 #define MBEDTLS_MAX_IV_LENGTH 16
225
226 #define MBEDTLS_MAX_BLOCK_LENGTH 16
227
231 typedef struct mbedtls_cipher_base_t mbedtls_cipher_base_t;
232
236 typedef struct mbedtls_cmac_context_t mbedtls_cmac_context_t;
237
242 typedef struct mbedtls_cipher_info_t
243 {
247 mbedtls_cipher_type_t type;
248
250 mbedtls_cipher_mode_t mode;
251
256 unsigned int key_bitlen;
257
259 const char * name;
260
265 unsigned int iv_size;
266
271 int flags;
272
274 unsigned int block_size;
275
277 const mbedtls_cipher_base_t *base;
278
279 } mbedtls_cipher_info_t;
280
284 typedef struct mbedtls_cipher_context_t
285 {
287 const mbedtls_cipher_info_t *cipher_info;
288
290 int key_bitlen;
291
295 mbedtls_operation_t operation;
296
297 #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
298
301 void (*add_padding)( unsigned char *output, size_t olen, size_t data_len );
302 int (*get_padding)( unsigned char *input, size_t ilen, size_t *data_len );
303 #endif
304
306 unsigned char unprocessed_data[MBEDTLS_MAX_BLOCK_LENGTH];
307
309 size_t unprocessed_len;
310
313 unsigned char iv[MBEDTLS_MAX_IV_LENGTH];
314
316 size_t iv_size;
317
319 void *cipher_ctx;
320
321 #if defined(MBEDTLS_CMAC_C)
322
323 mbedtls_cmac_context_t *cmac_ctx;
324 #endif
325 } mbedtls_cipher_context_t;
326
334 const int *mbedtls_cipher_list( void );
335
347 const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string( const char *cipher_name );
348
359 const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type( const mbedtls_cipher_type_t cipher_type );
360
375 const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values( const mbedtls_cipher_id_t cipher_id,
376 int key_bitlen,
377 const mbedtls_cipher_mode_t mode );
378
384 void mbedtls_cipher_init( mbedtls_cipher_context_t *ctx );
385
395 void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx );
396
397
416 int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx,
417 const mbedtls_cipher_info_t *cipher_info );
418
427 static inline unsigned int mbedtls_cipher_get_block_size(
428 const mbedtls_cipher_context_t *ctx )
429 {
430 MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, 0 );
431 if( ctx->cipher_info == NULL )
432 return 0;
433
434 return ctx->cipher_info->block_size;
435 }
436
446 static inline mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode(
447 const mbedtls_cipher_context_t *ctx )
448 {
449 MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, MBEDTLS_MODE_NONE );
450 if( ctx->cipher_info == NULL )
451 return MBEDTLS_MODE_NONE;
452
453 return ctx->cipher_info->mode;
454 }
455
466 static inline int mbedtls_cipher_get_iv_size(
467 const mbedtls_cipher_context_t *ctx )
468 {
469 MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, 0 );
470 if( ctx->cipher_info == NULL )
471 return 0;
472
473 if( ctx->iv_size != 0 )
474 return (int) ctx->iv_size;
475
476 return (int) ctx->cipher_info->iv_size;
477 }
478
487 static inline mbedtls_cipher_type_t mbedtls_cipher_get_type(
488 const mbedtls_cipher_context_t *ctx )
489 {
490 MBEDTLS_INTERNAL_VALIDATE_RET(
491 ctx != NULL, MBEDTLS_CIPHER_NONE );
492 if( ctx->cipher_info == NULL )
493 return MBEDTLS_CIPHER_NONE;
494
495 return ctx->cipher_info->type;
496 }
497
507 static inline const char *mbedtls_cipher_get_name(
508 const mbedtls_cipher_context_t *ctx )
509 {
510 MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, 0 );
511 if( ctx->cipher_info == NULL )
512 return 0;
513
514 return ctx->cipher_info->name;
515 }
516
526 static inline int mbedtls_cipher_get_key_bitlen(
527 const mbedtls_cipher_context_t *ctx )
528 {
529 MBEDTLS_INTERNAL_VALIDATE_RET(
530 ctx != NULL, MBEDTLS_KEY_LENGTH_NONE );
531 if( ctx->cipher_info == NULL )
532 return MBEDTLS_KEY_LENGTH_NONE;
533
534 return (int) ctx->cipher_info->key_bitlen;
535 }
536
545 static inline mbedtls_operation_t mbedtls_cipher_get_operation(
546 const mbedtls_cipher_context_t *ctx )
547 {
548 MBEDTLS_INTERNAL_VALIDATE_RET(
549 ctx != NULL, MBEDTLS_OPERATION_NONE );
550 if( ctx->cipher_info == NULL )
551 return MBEDTLS_OPERATION_NONE;
552
553 return ctx->operation;
554 }
555
572 int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx,
573 const unsigned char *key,
574 int key_bitlen,
575 const mbedtls_operation_t operation );
576
577 #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
578
594 int mbedtls_cipher_set_padding_mode( mbedtls_cipher_context_t *ctx,
595 mbedtls_cipher_padding_t mode );
596 #endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */
597
616 int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx,
617 const unsigned char *iv,
618 size_t iv_len );
619
629 int mbedtls_cipher_reset( mbedtls_cipher_context_t *ctx );
630
631 #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
632
646 int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx,
647 const unsigned char *ad, size_t ad_len );
648 #endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
649
684 int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *input,
685 size_t ilen, unsigned char *output, size_t *olen );
686
709 int mbedtls_cipher_finish( mbedtls_cipher_context_t *ctx,
710 unsigned char *output, size_t *olen );
711
712 #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
713
729 int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx,
730 unsigned char *tag, size_t tag_len );
731
745 int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx,
746 const unsigned char *tag, size_t tag_len );
747 #endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
748
782 int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
783 const unsigned char *iv, size_t iv_len,
784 const unsigned char *input, size_t ilen,
785 unsigned char *output, size_t *olen );
786
787 #if defined(MBEDTLS_CIPHER_MODE_AEAD)
788
818 int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx,
819 const unsigned char *iv, size_t iv_len,
820 const unsigned char *ad, size_t ad_len,
821 const unsigned char *input, size_t ilen,
822 unsigned char *output, size_t *olen,
823 unsigned char *tag, size_t tag_len );
824
860 int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
861 const unsigned char *iv, size_t iv_len,
862 const unsigned char *ad, size_t ad_len,
863 const unsigned char *input, size_t ilen,
864 unsigned char *output, size_t *olen,
865 const unsigned char *tag, size_t tag_len );
866 #endif /* MBEDTLS_CIPHER_MODE_AEAD */
867
868 #ifdef __cplusplus
869 }
870 #endif
871
872 #endif /* MBEDTLS_CIPHER_H */
MBEDTLS_CIPHER_CAMELLIA_256_CFB128
Definition: cipher.h:130
MBEDTLS_CIPHER_ARIA_192_CCM
Definition: cipher.h:170
MBEDTLS_CIPHER_ARIA_256_GCM
Definition: cipher.h:168
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:545
MBEDTLS_CIPHER_ARIA_192_CBC
Definition: cipher.h:158
MBEDTLS_CIPHER_AES_256_CTR
Definition: cipher.h:118
mbedtls_cipher_list
const int * mbedtls_cipher_list(void)
This function retrieves the list of ciphers supported by the generic cipher module.
mbedtls_cipher_context_t::unprocessed_len
size_t unprocessed_len
Definition: cipher.h:309
MBEDTLS_CIPHER_DES_EDE3_CBC
Definition: cipher.h:142
MBEDTLS_CIPHER_AES_192_CFB128
Definition: cipher.h:114
mbedtls_cipher_init
void mbedtls_cipher_init(mbedtls_cipher_context_t *ctx)
This function initializes a cipher_context as NONE.
MBEDTLS_CIPHER_CAMELLIA_128_CCM
Definition: cipher.h:151
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....
mbedtls_cipher_context_t::operation
mbedtls_operation_t operation
Definition: cipher.h:295
mbedtls_cipher_context_t
struct mbedtls_cipher_context_t mbedtls_cipher_context_t
MBEDTLS_CIPHER_ID_BLOWFISH
Definition: cipher.h:91
MBEDTLS_CIPHER_ARIA_128_GCM
Definition: cipher.h:166
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_CAMELLIA_192_CTR
Definition: cipher.h:132
MBEDTLS_CIPHER_AES_192_CBC
Definition: cipher.h:111
MBEDTLS_CIPHER_AES_192_CTR
Definition: cipher.h:117
MBEDTLS_MODE_CTR
Definition: cipher.h:188
MBEDTLS_CIPHER_AES_256_ECB
Definition: cipher.h:109
MBEDTLS_DECRYPT
Definition: cipher.h:208
MBEDTLS_CIPHER_ARIA_192_CFB128
Definition: cipher.h:161
MBEDTLS_CIPHER_ARIA_128_CTR
Definition: cipher.h:163
mbedtls_cipher_info_t::type
mbedtls_cipher_type_t type
Definition: cipher.h:247
MBEDTLS_CIPHER_CHACHA20_POLY1305
Definition: cipher.h:178
MBEDTLS_CIPHER_AES_192_ECB
Definition: cipher.h:108
MBEDTLS_CIPHER_ARIA_256_CFB128
Definition: cipher.h:162
MBEDTLS_CIPHER_ID_CHACHA20
Definition: cipher.h:94
mbedtls_cipher_info_t::base
const mbedtls_cipher_base_t * base
Definition: cipher.h:277
MBEDTLS_CIPHER_AES_128_OFB
Definition: cipher.h:172
MBEDTLS_CIPHER_ARIA_192_GCM
Definition: cipher.h:167
MBEDTLS_CIPHER_ID_NONE
Definition: cipher.h:85
MBEDTLS_CIPHER_AES_128_CBC
Definition: cipher.h:110
mbedtls_cipher_id_t
mbedtls_cipher_id_t
Supported cipher types.
Definition: cipher.h:84
MBEDTLS_CIPHER_CAMELLIA_128_GCM
Definition: cipher.h:134
mbedtls_cipher_context_t::iv_size
size_t iv_size
Definition: cipher.h:316
MBEDTLS_KEY_LENGTH_DES_EDE3
Definition: cipher.h:220
MBEDTLS_CIPHER_AES_256_OFB
Definition: cipher.h:174
MBEDTLS_CIPHER_CAMELLIA_256_GCM
Definition: cipher.h:136
MBEDTLS_MODE_NONE
Definition: cipher.h:183
mbedtls_cipher_info_t
Definition: cipher.h:242
mbedtls_cipher_info_t::iv_size
unsigned int iv_size
Definition: cipher.h:265
MBEDTLS_CIPHER_AES_128_CFB128
Definition: cipher.h:113
MBEDTLS_CIPHER_CHACHA20
Definition: cipher.h:177
MBEDTLS_CIPHER_ARIA_256_CCM
Definition: cipher.h:171
MBEDTLS_MODE_GCM
Definition: cipher.h:189
mbedtls_operation_t
mbedtls_operation_t
Definition: cipher.h:206
MBEDTLS_CIPHER_AES_128_GCM
Definition: cipher.h:119
MBEDTLS_PADDING_ONE_AND_ZEROS
Definition: cipher.h:199
MBEDTLS_CIPHER_DES_ECB
Definition: cipher.h:137
MBEDTLS_CIPHER_DES_EDE_ECB
Definition: cipher.h:139
MBEDTLS_CIPHER_AES_256_XTS
Definition: cipher.h:176
MBEDTLS_CIPHER_ARIA_256_CBC
Definition: cipher.h:159
mbedtls_cipher_info_t::key_bitlen
unsigned int key_bitlen
Definition: cipher.h:256
MBEDTLS_CIPHER_BLOWFISH_CTR
Definition: cipher.h:146
mbedtls_cipher_context_t::key_bitlen
int key_bitlen
Definition: cipher.h:290
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_CIPHER_BLOWFISH_CFB64
Definition: cipher.h:145
mbedtls_cmac_context_t
Definition: cmac.h:60
mbedtls_cipher_mode_t
mbedtls_cipher_mode_t
Definition: cipher.h:182
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_CAMELLIA_256_CCM
Definition: cipher.h:153
MBEDTLS_PADDING_NONE
Definition: cipher.h:202
mbedtls_cipher_padding_t
mbedtls_cipher_padding_t
Definition: cipher.h:197
MBEDTLS_CIPHER_ARIA_128_CFB128
Definition: cipher.h:160
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_MODE_XTS
Definition: cipher.h:192
MBEDTLS_CIPHER_CAMELLIA_256_CBC
Definition: cipher.h:127
MBEDTLS_OPERATION_NONE
Definition: cipher.h:207
MBEDTLS_CIPHER_CAMELLIA_192_CFB128
Definition: cipher.h:129
MBEDTLS_CIPHER_ID_DES
Definition: cipher.h:88
MBEDTLS_CIPHER_ARIA_256_ECB
Definition: cipher.h:156
MBEDTLS_CIPHER_NULL
Definition: cipher.h:106
mbedtls_cipher_info_t::mode
mbedtls_cipher_mode_t mode
Definition: cipher.h:250
MBEDTLS_CIPHER_BLOWFISH_CBC
Definition: cipher.h:144
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_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....
mbedtls_cipher_info_t::block_size
unsigned int block_size
Definition: cipher.h:274
MBEDTLS_MODE_STREAM
Definition: cipher.h:190
MBEDTLS_CIPHER_ID_ARC4
Definition: cipher.h:92
MBEDTLS_CIPHER_AES_256_GCM
Definition: cipher.h:121
MBEDTLS_CIPHER_AES_256_CBC
Definition: cipher.h:112
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_CAMELLIA_192_CCM
Definition: cipher.h:152
MBEDTLS_CIPHER_DES_EDE_CBC
Definition: cipher.h:140
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_MODE_CBC
Definition: cipher.h:185
mbedtls_cipher_reset
int mbedtls_cipher_reset(mbedtls_cipher_context_t *ctx)
This function resets the cipher state.
MBEDTLS_PADDING_PKCS7
Definition: cipher.h:198
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:466
MBEDTLS_CIPHER_CAMELLIA_256_CTR
Definition: cipher.h:133
MBEDTLS_MODE_CCM
Definition: cipher.h:191
MBEDTLS_MODE_ECB
Definition: cipher.h:184
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_MAX_BLOCK_LENGTH
#define MBEDTLS_MAX_BLOCK_LENGTH
Definition: cipher.h:226
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_DES_EDE3_ECB
Definition: cipher.h:141
mbedtls_cipher_info_t::name
const char * name
Definition: cipher.h:259
MBEDTLS_CIPHER_AES_256_CCM
Definition: cipher.h:150
MBEDTLS_CIPHER_CAMELLIA_128_CBC
Definition: cipher.h:125
MBEDTLS_ENCRYPT
Definition: cipher.h:209
mbedtls_cipher_context_t::unprocessed_data
unsigned char unprocessed_data[MBEDTLS_MAX_BLOCK_LENGTH]
Definition: cipher.h:306
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:526
MBEDTLS_CIPHER_AES_192_OFB
Definition: cipher.h:173
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:487
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::flags
int flags
Definition: cipher.h:271
MBEDTLS_CIPHER_ARIA_128_CBC
Definition: cipher.h:157
MBEDTLS_CIPHER_ARIA_256_CTR
Definition: cipher.h:165
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:446
MBEDTLS_CIPHER_ID_CAMELLIA
Definition: cipher.h:90
MBEDTLS_CIPHER_AES_128_CTR
Definition: cipher.h:116
MBEDTLS_CIPHER_CAMELLIA_256_ECB
Definition: cipher.h:124
MBEDTLS_CIPHER_AES_192_GCM
Definition: cipher.h:120
MBEDTLS_CIPHER_CAMELLIA_128_CFB128
Definition: cipher.h:128
MBEDTLS_MODE_CHACHAPOLY
Definition: cipher.h:193
MBEDTLS_CIPHER_ARC4_128
Definition: cipher.h:147
mbedtls_cipher_base_t
struct mbedtls_cipher_base_t mbedtls_cipher_base_t
Definition: cipher.h:231
mbedtls_cipher_context_t::add_padding
void(* add_padding)(unsigned char *output, size_t olen, size_t data_len)
Definition: cipher.h:301
MBEDTLS_CIPHER_DES_CBC
Definition: cipher.h:138
MBEDTLS_CIPHER_ARIA_192_CTR
Definition: cipher.h:164
mbedtls_cipher_context_t
Definition: cipher.h:284
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:427
MBEDTLS_CIPHER_ARIA_128_CCM
Definition: cipher.h:169
MBEDTLS_KEY_LENGTH_DES
Definition: cipher.h:216
MBEDTLS_MAX_IV_LENGTH
#define MBEDTLS_MAX_IV_LENGTH
Definition: cipher.h:224
config.h
Configuration options (set of defines)
MBEDTLS_CIPHER_NONE
Definition: cipher.h:105
MBEDTLS_PADDING_ZEROS_AND_LEN
Definition: cipher.h:200
MBEDTLS_CIPHER_ID_AES
Definition: cipher.h:87
MBEDTLS_CIPHER_AES_128_XTS
Definition: cipher.h:175
platform_util.h
Common and shared functions used by multiple modules in the Mbed TLS library.
MBEDTLS_CIPHER_AES_192_CCM
Definition: cipher.h:149
MBEDTLS_PADDING_ZEROS
Definition: cipher.h:201
MBEDTLS_CIPHER_CAMELLIA_192_CBC
Definition: cipher.h:126
MBEDTLS_CIPHER_AES_128_ECB
Definition: cipher.h:107
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_ID_3DES
Definition: cipher.h:89
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_AES_256_CFB128
Definition: cipher.h:115
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_context_t::cipher_ctx
void * cipher_ctx
Definition: cipher.h:319
MBEDTLS_CIPHER_ARIA_128_ECB
Definition: cipher.h:154
MBEDTLS_CIPHER_ID_NULL
Definition: cipher.h:86
MBEDTLS_CIPHER_CAMELLIA_128_CTR
Definition: cipher.h:131
MBEDTLS_INTERNAL_VALIDATE_RET
#define MBEDTLS_INTERNAL_VALIDATE_RET(cond, ret)
Definition: platform_util.h:111
MBEDTLS_CIPHER_ARIA_192_ECB
Definition: cipher.h:155
MBEDTLS_CIPHER_CAMELLIA_192_ECB
Definition: cipher.h:123
MBEDTLS_MODE_CFB
Definition: cipher.h:186
MBEDTLS_CIPHER_CAMELLIA_192_GCM
Definition: cipher.h:135
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:507
MBEDTLS_CIPHER_BLOWFISH_ECB
Definition: cipher.h:143
MBEDTLS_KEY_LENGTH_NONE
Definition: cipher.h:214
mbedtls_cipher_type_t
mbedtls_cipher_type_t
Supported {cipher type, cipher mode} pairs.
Definition: cipher.h:104
mbedtls_cipher_context_t::iv
unsigned char iv[MBEDTLS_MAX_IV_LENGTH]
Definition: cipher.h:313
MBEDTLS_CIPHER_ID_ARIA
Definition: cipher.h:93
MBEDTLS_CIPHER_AES_128_CCM
Definition: cipher.h:148
mbedtls_cipher_info_t
struct mbedtls_cipher_info_t mbedtls_cipher_info_t
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_cipher_context_t::cipher_info
const mbedtls_cipher_info_t * cipher_info
Definition: cipher.h:287
MBEDTLS_KEY_LENGTH_DES_EDE
Definition: cipher.h:218
MBEDTLS_MODE_OFB
Definition: cipher.h:187
MBEDTLS_CIPHER_CAMELLIA_128_ECB
Definition: cipher.h:122
mbedtls_cipher_context_t::get_padding
int(* get_padding)(unsigned char *input, size_t ilen, size_t *data_len)
Definition: cipher.h:302