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TARGET_TFM/TARGET_TFM_LATEST/include/psa/crypto_extra.h
1 /*
2  * Copyright (c) 2018-2020, Arm Limited. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  *
6  */
7 /**
8  * \file psa/crypto_extra.h
9  *
10  * \brief PSA cryptography module: vendor extensions
11  *
12  * \note This file may not be included directly. Applications must
13  * include psa/crypto.h.
14  *
15  * This file is reserved for vendor-specific definitions.
16  */
17 
18 #ifndef PSA_CRYPTO_EXTRA_H
19 #define PSA_CRYPTO_EXTRA_H
20 
21 #include "psa/crypto_compat.h"
22 
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26 
27 /** \addtogroup crypto_types
28  * @{
29  */
30 
31 /** DSA public key.
32  *
33  * The import and export format is the
34  * representation of the public key `y = g^x mod p` as a big-endian byte
35  * string. The length of the byte string is the length of the base prime `p`
36  * in bytes.
37  */
38 #define PSA_KEY_TYPE_DSA_PUBLIC_KEY ((psa_key_type_t)0x4002)
39 
40 /** DSA key pair (private and public key).
41  *
42  * The import and export format is the
43  * representation of the private key `x` as a big-endian byte string. The
44  * length of the byte string is the private key size in bytes (leading zeroes
45  * are not stripped).
46  *
47  * Determinstic DSA key derivation with psa_generate_derived_key follows
48  * FIPS 186-4 §B.1.2: interpret the byte string as integer
49  * in big-endian order. Discard it if it is not in the range
50  * [0, *N* - 2] where *N* is the boundary of the private key domain
51  * (the prime *p* for Diffie-Hellman, the subprime *q* for DSA,
52  * or the order of the curve's base point for ECC).
53  * Add 1 to the resulting integer and use this as the private key *x*.
54  *
55  */
56 #define PSA_KEY_TYPE_DSA_KEY_PAIR ((psa_key_type_t)0x7002)
57 
58 /**@}*/
59 
61 
62 #ifdef __cplusplus
63 }
64 #endif
65 
66 #endif /* PSA_CRYPTO_EXTRA_H */
Excerpted from Mbed TLS for internal use by Mbed TLS's PK module to interface with generic PSA Crypto...
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