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psa_verify_hash() function
Verify the signature of a hash or short message using a public key. Note that to perform a hash-and-sign signature algorithm, you must first calculate the hash by calling psa_hash_setup(), psa_hash_update() and psa_hash_finish(), or alternatively by calling psa_hash_compute(). Then pass the resulting hash as the \p hash parameter to this function. You can use #PSA_ALG_SIGN_GET_HASH(\p alg) to determine the hash algorithm to use.
Syntax
psa_status_t psa_verify_hash(mbedtls_svc_key_id_t key,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
const uint8_t *signature,
size_t signature_length);
Return value
#PSA_SUCCESS The signature is valid. #PSA_ERROR_INVALID_HANDLE \emptydescription #PSA_ERROR_NOT_PERMITTED \emptydescription #PSA_ERROR_INVALID_SIGNATURE The calculation was performed successfully, but the passed signature is not a valid signature. #PSA_ERROR_NOT_SUPPORTED \emptydescription #PSA_ERROR_INVALID_ARGUMENT \emptydescription #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription #PSA_ERROR_HARDWARE_FAILURE \emptydescription #PSA_ERROR_CORRUPTION_DETECTED \emptydescription #PSA_ERROR_STORAGE_FAILURE \emptydescription #PSA_ERROR_BAD_STATE The library has not been previously initialized by psa_crypto_init(). It is implementation-dependent whether a failure to initialize results in this error code.