case TFC_DO_DECRYPT: oper_mode = "decrypted"; break;
default:
if (ctr_mode == TFC_MODE_PLAIN) oper_mode = "written";
+ else if (ctr_mode == TFC_MODE_XOR) oper_mode = "xored";
else if (ctr_mode == TFC_MODE_SKSUM) oper_mode = "hashed";
else oper_mode = NULL;
break;