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package org.bouncycastle.jce.provider.test;
import java.security.Key;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTest;
public class OCBTest
extends SimpleTest
{
public String getName()
{
return "OCB";
}
public void performTest()
throws Exception
{
checkRegistrations();
}
private void checkRegistrations()
throws Exception
{
String[] ciphers = new String[] { "AES", "NOEKEON", "Twofish", "CAST6", "SEED", "Serpent", "RC6", "CAMELLIA" };
String[] cipherText = new String[]
{
"BEA5E8798DBE7110031C144DA0B2612213CC8B747807121A4CBB3E4BD6B456AF",
"a2545b927e0f2e6db2998e20b17d5fc0564dcab63b748327e2ef4eaed88cb059",
"1cfafe72f7181cae331610c116345e51fc356b379aca04da2a53337c5428d8e4",
"5b9b738b2ac7000b33b89dd4eec18dd853f4f7c1d9e17b565405f17a0a8c8b63",
"fcdbcee69d02c69858ed4569f78b81920b3027cdb7f1f154634aa5ace9e6ba29",
"4f7154cb34558940e85db7d3e96ac6c9cb0d9c1b00b18e82e15d1be83deef9df",
"23f3e450c4c7199563a0ed601a5c60d75eb88db2a0d090ae5e84d98438a146aa",
"ac13ce9db4af148e910a813fc728e5785e23b1bf1d04a961a3f95f356b9417ab"
};
for (int i = 0; i < ciphers.length; i++)
{
ocbTest(ciphers[i], cipherText[i]);
}
}
private void ocbTest(String cipher, String cText)
throws Exception
{
byte[] K = Hex.decode(
"000102030405060708090A0B0C0D0E0F");
byte[] P = Hex.decode(
"000102030405060708090A0B0C0D0E0F");
byte[] N = Hex.decode("000102030405060708090A0B");
String T = "4CBB3E4BD6B456AF";
byte[] C = Hex.decode(cText);
Key key;
Cipher in, out;
key = new SecretKeySpec(K, cipher);
in = Cipher.getInstance(cipher + "/OCB/NoPadding", "BC");
out = Cipher.getInstance(cipher + "/OCB/NoPadding", "BC");
in.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(N));
byte[] enc = in.doFinal(P);
if (!areEqual(enc, C))
{
fail("ciphertext doesn't match in OCB got " + new String(Hex.encode(enc)));
}
out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(N));
byte[] dec = out.doFinal(C);
if (!areEqual(dec, P))
{
fail("plaintext doesn't match in OCB");
}
try
{
in = Cipher.getInstance(cipher + "/OCB/PKCS5Padding", "BC");
fail("bad padding missed in OCB");
}
catch (NoSuchPaddingException e)
{
// expected
}
}
public static void main(String[] args)
{
Security.addProvider(new BouncyCastleProvider());
runTest(new OCBTest());
}
}
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