{
byte[] nonce = new byte[16];
for (int i = 0; i < nonce.length; i++)
nonce[i] = (byte) i;
params = new UMac32ParameterSpec(nonce);
attrib.put(UMac32.NONCE_MATERIAL, nonce);
}
else if (macName.equalsIgnoreCase("TMMH16"))
{
IRandom rand1 = new MDGenerator();