PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE
ERR_raise(ERR_LIB_PKCS7, PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
{ ERR_PACK(ERR_LIB_PKCS7, 0, PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE),