psa_util.h

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/*
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 */
 
#ifndef MBEDTLS_PSA_UTIL_H
#define MBEDTLS_PSA_UTIL_H
#include "mbedtls/private_access.h"
 
#include "mbedtls/build_info.h"
 
#include "psa/crypto.h"
 
/* ASN1 defines used in the ECDSA conversion functions.
 * Note: intentionally not adding MBEDTLS_ASN1_[PARSE|WRITE]_C guards here
 * otherwise error codes would be unknown in test_suite_psa_crypto_util.data.*/
#include <mbedtls/asn1write.h>
 
#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)

int mbedtls_psa_get_random(void *p_rng,
                           unsigned char *output,
                           size_t output_size);

#define MBEDTLS_PSA_RANDOM_STATE    NULL

#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
#include <mbedtls/ecp.h>

psa_ecc_family_t mbedtls_ecc_group_to_psa(mbedtls_ecp_group_id grpid,
                                          size_t *bits);

mbedtls_ecp_group_id mbedtls_ecc_group_from_psa(psa_ecc_family_t family,
                                                size_t bits);
#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */

static inline psa_algorithm_t mbedtls_md_psa_alg_from_type(mbedtls_md_type_t md_type)
{
    return PSA_ALG_CATEGORY_HASH | (psa_algorithm_t) md_type;
}

static inline mbedtls_md_type_t mbedtls_md_type_from_psa_alg(psa_algorithm_t psa_alg)
{
    return (mbedtls_md_type_t) (psa_alg & PSA_ALG_HASH_MASK);
}
#endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
 
#if defined(MBEDTLS_PSA_UTIL_HAVE_ECDSA)

int mbedtls_ecdsa_raw_to_der(size_t bits, const unsigned char *raw, size_t raw_len,
                             unsigned char *der, size_t der_size, size_t *der_len);

int mbedtls_ecdsa_der_to_raw(size_t bits, const unsigned char *der, size_t der_len,
                             unsigned char *raw, size_t raw_size, size_t *raw_len);
 
#endif /* MBEDTLS_PSA_UTIL_HAVE_ECDSA */

 
#endif /* MBEDTLS_PSA_UTIL_H */