public Set<EncryptionType> getKeyEncryptionTypes() {
    return keyEncryptionTypes;
  }
Gets the encryption algorithms used to encrypt keys in keytab entries

@return a Set of EncryptionKey values indicating which algorithms are to be used when
encrypting keys for keytab entries.
ambari-server/src/main/java/org/apache/ambari/server/serveraction/kerberos/KerberosOperationHandler.java