* @return The complete key
*/
//CHECKSTYLE:OFF
private static Number160 createNr(final String key1, final int nr) {
Number160 firstKey = Number160.createHash(key1);
int[] val = firstKey.toIntArray();
val[0] = val[0] ^ val[4] ^ val[3] ^ val[2];
val[1] = val[1] ^ val[4] ^ val[3] ^ val[2];
val[2] = nr;
val[3] = nr;
val[4] = nr;