@Test
public void testKeytab() {
assertThat(keytab).isNotNull();
List<PrincipalName> principals = keytab.getPrincipals();
PrincipalName principal = principals.get(0);
List<KeytabEntry> entries = keytab.getKeytabEntries(principal);
for (KeytabEntry ke : entries) {
assertThat(ke.getKvno() == 1).isTrue();
}
}
/**
* Remove all the old keys of the specified principal in the specified keytab file.
*
* @param keytabFile The keytab file
* @param principalName The principal name
* @throws KrbException
*/
static void removeOldKeytabEntriesOf(File keytabFile, String principalName) throws KrbException {
Keytab keytab = loadKeytab(keytabFile);
List<KeytabEntry> entries = keytab.getKeytabEntries(new PrincipalName(principalName));
int maxKvno = 0;
for (KeytabEntry entry : entries) {
if (maxKvno < entry.getKvno()) {
maxKvno = entry.getKvno();
}
}
for (KeytabEntry entry : entries) {
if (entry.getKvno() < maxKvno) {
keytab.removeKeytabEntry(entry);
}
}
storeKeytab(keytab, keytabFile);
}