gbe_fork/mbedtls/md_psa.h
2023-12-24 14:33:40 +02:00

64 lines
2.1 KiB
C

/**
* Translation between MD and PSA identifiers (algorithms, errors).
*
* Note: this internal module will go away when everything becomes based on
* PSA Crypto; it is a helper for the transition period.
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*/
#ifndef MBEDTLS_MD_PSA_H
#define MBEDTLS_MD_PSA_H
#include "common.h"
#include "mbedtls/md.h"
#include "psa/crypto.h"
/**
* \brief This function returns the PSA algorithm identifier
* associated with the given digest type.
*
* \param md_type The type of digest to search for. Must not be NONE.
*
* \warning If \p md_type is \c MBEDTLS_MD_NONE, this function will
* not return \c PSA_ALG_NONE, but an invalid algorithm.
*
* \warning This function does not check if the algorithm is
* supported, it always returns the corresponding identifier.
*
* \return The PSA algorithm identifier associated with \p md_type,
* regardless of whether it is supported or not.
*/
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;
}
/**
* \brief This function returns the given digest type
* associated with the PSA algorithm identifier.
*
* \param psa_alg The PSA algorithm identifier to search for.
*
* \warning This function does not check if the algorithm is
* supported, it always returns the corresponding identifier.
*
* \return The MD type associated with \p psa_alg,
* regardless of whether it is supported or not.
*/
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);
}
/** Convert PSA status to MD error code.
*
* \param status PSA status.
*
* \return The corresponding MD error code,
*/
int mbedtls_md_error_from_psa(psa_status_t status);
#endif /* MBEDTLS_MD_PSA_H */