psa_status_t cc3xx_key_agreement(const psa_key_attributes_t *attributes, const uint8_t *priv_key, size_t priv_key_size, const uint8_t *publ_key, size_t publ_key_size, uint8_t *output, size_t output_size, size_t *output_length, psa_algorithm_t alg)
Performs a raw key agreement (i.e. Elliptic Curve Diffie Hellman)