When krb5int_c_combine_keys was updated to use the new crypto
interface, a small bug was introduced. It turns out the temporary
keyblock created needs to have its enctype set; otherwise, when
krb5int_derive_keyblock() is called later, it will fail with
KRB5_BAD_ENCTYPE.
ticket: 7914
target_version: 1.12.2
tags: pullup
randbits.data = (char *) rnd;
tkeyblock.length = keylength;
tkeyblock.contents = output;
+ tkeyblock.enctype = key1->enctype;
ret = (*ktp->rand2key)(&randbits, &tkeyblock);
if (ret)