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