krb5_c_is_coll_proof_cksum
krb5_c_is_coll_proof_cksum (krb5_cksumtype /*ctype*/);
if (!krb5_c_is_coll_proof_cksum(his_cksum->checksum_type))
return krb5_c_is_coll_proof_cksum(ctype);
if (!krb5_c_is_coll_proof_cksum(krbsafe->checksum->checksum_type) ||