mbed TLS v2.16.3: ccm.h Source File

mbed TLS v2.16.3

ccm.h
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1
30 /*
31 * Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
32 * SPDX-License-Identifier: Apache-2.0
33 *
34 * Licensed under the Apache License, Version 2.0 (the "License"); you may
35 * not use this file except in compliance with the License.
36 * You may obtain a copy of the License at
37 *
38 * http://www.apache.org/licenses/LICENSE-2.0
39 *
40 * Unless required by applicable law or agreed to in writing, software
41 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
42 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
43 * See the License for the specific language governing permissions and
44 * limitations under the License.
45 *
46 * This file is part of Mbed TLS (https://tls.mbed.org)
47 */
48
49 #ifndef MBEDTLS_CCM_H
50 #define MBEDTLS_CCM_H
51
52 #if !defined(MBEDTLS_CONFIG_FILE)
53 #include "config.h"
54 #else
55 #include MBEDTLS_CONFIG_FILE
56 #endif
57
58 #include "cipher.h"
59
60 #define MBEDTLS_ERR_CCM_BAD_INPUT -0x000D
61 #define MBEDTLS_ERR_CCM_AUTH_FAILED -0x000F
63 /* MBEDTLS_ERR_CCM_HW_ACCEL_FAILED is deprecated and should not be used. */
64 #define MBEDTLS_ERR_CCM_HW_ACCEL_FAILED -0x0011
66 #ifdef __cplusplus
67 extern "C" {
68 #endif
69
70 #if !defined(MBEDTLS_CCM_ALT)
71 // Regular implementation
72 //
73
78 typedef struct mbedtls_ccm_context
79 {
80 mbedtls_cipher_context_t cipher_ctx;
81 }
82 mbedtls_ccm_context;
83
84 #else /* MBEDTLS_CCM_ALT */
85 #include "ccm_alt.h"
86 #endif /* MBEDTLS_CCM_ALT */
87
95 void mbedtls_ccm_init( mbedtls_ccm_context *ctx );
96
110 int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx,
111 mbedtls_cipher_id_t cipher,
112 const unsigned char *key,
113 unsigned int keybits );
114
122 void mbedtls_ccm_free( mbedtls_ccm_context *ctx );
123
160 int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
161 const unsigned char *iv, size_t iv_len,
162 const unsigned char *add, size_t add_len,
163 const unsigned char *input, unsigned char *output,
164 unsigned char *tag, size_t tag_len );
165
208 int mbedtls_ccm_star_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
209 const unsigned char *iv, size_t iv_len,
210 const unsigned char *add, size_t add_len,
211 const unsigned char *input, unsigned char *output,
212 unsigned char *tag, size_t tag_len );
213
245 int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
246 const unsigned char *iv, size_t iv_len,
247 const unsigned char *add, size_t add_len,
248 const unsigned char *input, unsigned char *output,
249 const unsigned char *tag, size_t tag_len );
250
290 int mbedtls_ccm_star_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
291 const unsigned char *iv, size_t iv_len,
292 const unsigned char *add, size_t add_len,
293 const unsigned char *input, unsigned char *output,
294 const unsigned char *tag, size_t tag_len );
295
296 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
297
303 int mbedtls_ccm_self_test( int verbose );
304 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
305
306 #ifdef __cplusplus
307 }
308 #endif
309
310 #endif /* MBEDTLS_CCM_H */
mbedtls_ccm_context
The CCM context-type definition. The CCM context is passed to the APIs called.
Definition: ccm.h:78
mbedtls_cipher_id_t
mbedtls_cipher_id_t
Supported cipher types.
Definition: cipher.h:84
mbedtls_ccm_self_test
int mbedtls_ccm_self_test(int verbose)
The CCM checkup routine.
mbedtls_ccm_encrypt_and_tag
int mbedtls_ccm_encrypt_and_tag(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, unsigned char *tag, size_t tag_len)
This function encrypts a buffer using CCM.
mbedtls_ccm_star_auth_decrypt
int mbedtls_ccm_star_auth_decrypt(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, const unsigned char *tag, size_t tag_len)
This function performs a CCM* authenticated decryption of a buffer.
mbedtls_ccm_init
void mbedtls_ccm_init(mbedtls_ccm_context *ctx)
This function initializes the specified CCM context, to make references valid, and prepare the contex...
cipher.h
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
mbedtls_ccm_context::cipher_ctx
mbedtls_cipher_context_t cipher_ctx
Definition: ccm.h:80
mbedtls_ccm_setkey
int mbedtls_ccm_setkey(mbedtls_ccm_context *ctx, mbedtls_cipher_id_t cipher, const unsigned char *key, unsigned int keybits)
This function initializes the CCM context set in the ctx parameter and sets the encryption key.
mbedtls_ccm_free
void mbedtls_ccm_free(mbedtls_ccm_context *ctx)
This function releases and clears the specified CCM context and underlying cipher sub-context.
mbedtls_cipher_context_t
Definition: cipher.h:284
mbedtls_ccm_auth_decrypt
int mbedtls_ccm_auth_decrypt(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, const unsigned char *tag, size_t tag_len)
This function performs a CCM authenticated decryption of a buffer.
mbedtls_ccm_star_encrypt_and_tag
int mbedtls_ccm_star_encrypt_and_tag(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, unsigned char *tag, size_t tag_len)
This function encrypts a buffer using CCM*.
config.h
Configuration options (set of defines)
mbedtls_ccm_context
struct mbedtls_ccm_context mbedtls_ccm_context
The CCM context-type definition. The CCM context is passed to the APIs called.