Improve comment on buffer clearing
@@ -3756,10 +3756,10 @@ psa_status_t psa_aead_finish( psa_aead_operation_t *operation,
exit:
/* In case the operation fails and the user fails to check for failure or
- * the zero tag size, make sure the tag is set to something impossible.
- * Even if the operation succeeds, make sure we set the rest of the
- * buffer to something impossible to prevent potential leakage of
- * anything previously placed in the same buffer.*/
+ * the zero tag size, make sure the tag is set to something implausible.
+ * Even if the operation succeeds, make sure we clear the rest of the
+ * buffer to prevent potential leakage of anything previously placed in
+ * the same buffer.*/
if( status != PSA_SUCCESS )
memset( tag, '!', tag_size );
else if( *tag_length < tag_size )
