Note that domain parameters are not supported with drivers
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index f39d1eb..f132f7e 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -446,6 +446,9 @@
* \note This is an experimental extension to the interface. It may change
* in future versions of the library.
*
+ * \note Due to an implementation limitation, domain parameters are ignored
+ * for keys that are managed by a driver.
+ *
* \param[in,out] attributes Attribute structure where the specified domain
* parameters will be stored.
* If this function fails, the content of
@@ -476,6 +479,9 @@
* \note This is an experimental extension to the interface. It may change
* in future versions of the library.
*
+ * \note Due to an implementation limitation, domain parameters are not
+ * supported with keys that are managed by a driver.
+ *
* \param[in] attributes The key attribute structure to query.
* \param[out] data On success, the key domain parameters.
* \param data_size Size of the \p data buffer in bytes.
@@ -488,6 +494,8 @@
*
* \retval #PSA_SUCCESS \emptydescription
* \retval #PSA_ERROR_BUFFER_TOO_SMALL \emptydescription
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * The key is managed by a driver.
*/
psa_status_t psa_get_key_domain_parameters(
const psa_key_attributes_t *attributes,