Functions defined by a client provider

Functions
int	psa_can_do_hash (psa_algorithm_t hash_alg)
int	psa_can_do_cipher (psa_key_type_t key_type, psa_algorithm_t cipher_alg)

Detailed Description

The functions in this group are meant to be implemented by providers of the PSA Crypto client interface. They are provided by the library when MBEDTLS_PSA_CRYPTO_C is enabled.

Note

All functions in this group are experimental, as using alternative client interface providers is experimental.

Function Documentation

psa_can_do_cipher()

int psa_can_do_cipher	(	psa_key_type_t	key_type,
		psa_algorithm_t	cipher_alg )

Tell if PSA is ready for this cipher.

Note

When using the built-in version of the PSA core (i.e. MBEDTLS_PSA_CRYPTO_C is set), for now, this function only checks the state of the driver subsystem, not the key type and algorithm. This might be improved in the future.

Parameters

key_type	The key type.
cipher_alg	The cipher algorithm.

Returns

1 if the PSA can handle cipher_alg, 0 otherwise.

psa_can_do_hash()

int psa_can_do_hash

(

psa_algorithm_t

hash_alg

)

Check if PSA is capable of handling the specified hash algorithm.

This means that PSA core was built with the corresponding PSA_WANT_ALG_xxx set and that psa_crypto_init has already been called.

Note

When using the built-in version of the PSA core (i.e. MBEDTLS_PSA_CRYPTO_C is set), for now, this function only checks the state of the driver subsystem, not the algorithm. This might be improved in the future.

Parameters

hash_alg

The hash algorithm.

Returns

1 if the PSA can handle hash_alg, 0 otherwise.