1 /*
2  *  Context structure declaration of the Mbed TLS software-based PSA drivers
3  *  called through the PSA Crypto driver dispatch layer.
4  *  This file contains the context structures of those algorithms which need to
5  *  rely on other algorithms, i.e. are 'composite' algorithms.
6  *
7  * \note This file may not be included directly. Applications must
8  * include psa/crypto.h.
9  *
10  * \note This header and its content is not part of the Mbed TLS API and
11  * applications must not depend on it. Its main purpose is to define the
12  * multi-part state objects of the Mbed TLS software-based PSA drivers. The
13  * definition of these objects are then used by crypto_struct.h to define the
14  * implementation-defined types of PSA multi-part state objects.
15  */
16 /*
17  *  Copyright The Mbed TLS Contributors
18  *  SPDX-License-Identifier: Apache-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
25  *
26  *  Unless required by applicable law or agreed to in writing, software
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 #ifndef PSA_CRYPTO_BUILTIN_COMPOSITES_H
34 #define PSA_CRYPTO_BUILTIN_COMPOSITES_H
35 
36 #include <psa/crypto_driver_common.h>
37 
38 /*
39  * MAC multi-part operation definitions.
40  */
41 #if defined(MBEDTLS_PSA_BUILTIN_ALG_CMAC) || \
42     defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC)
43 #define MBEDTLS_PSA_BUILTIN_MAC
44 #endif
45 
46 #if defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC) || defined(PSA_CRYPTO_DRIVER_TEST)
47 typedef struct
48 {
49     /** The HMAC algorithm in use */
50     psa_algorithm_t alg;
51     /** The hash context. */
52     struct psa_hash_operation_s hash_ctx;
53     /** The HMAC part of the context. */
54     uint8_t opad[PSA_HMAC_MAX_HASH_BLOCK_SIZE];
55 } mbedtls_psa_hmac_operation_t;
56 
57 #define MBEDTLS_PSA_HMAC_OPERATION_INIT {0, PSA_HASH_OPERATION_INIT, {0}}
58 #endif /* MBEDTLS_PSA_BUILTIN_ALG_HMAC */
59 
60 #include "mbedtls/cmac.h"
61 
62 typedef struct
63 {
64     psa_algorithm_t alg;
65     union
66     {
67         unsigned dummy; /* Make the union non-empty even with no supported algorithms. */
68 #if defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC) || defined(PSA_CRYPTO_DRIVER_TEST)
69         mbedtls_psa_hmac_operation_t hmac;
70 #endif /* MBEDTLS_PSA_BUILTIN_ALG_HMAC */
71 #if defined(MBEDTLS_PSA_BUILTIN_ALG_CMAC) || defined(PSA_CRYPTO_DRIVER_TEST)
72         mbedtls_cipher_context_t cmac;
73 #endif /* MBEDTLS_PSA_BUILTIN_ALG_CMAC */
74     } ctx;
75 } mbedtls_psa_mac_operation_t;
76 
77 #define MBEDTLS_PSA_MAC_OPERATION_INIT {0, {0}}
78 
79 #endif /* PSA_CRYPTO_BUILTIN_COMPOSITES_H */
80