TST_PLAIN
len = length[TST_PLAIN];
data[TST_IV], data[TST_PLAIN], p,
length[TST_PLAIN], 0) < 0) {
if (length[TST_PLAIN] != 0) {
length[TST_IV], data[TST_PLAIN], length[TST_PLAIN]);
fail = !match(data[TST_CIPHER], data[TST_PLAIN],
length[TST_PLAIN]);