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package org.bouncycastle.jce.provider.test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.Key;
import java.security.KeyException;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
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.SimpleTestResult;
import org.bouncycastle.util.test.Test;
import org.bouncycastle.util.test.TestResult;
/**
* basic FIPS test class for a block cipher, just to make sure ECB/CBC/OFB/CFB are behaving
* correctly. Tests from <a href=http://www.itl.nist.gov/fipspubs/fip81.htm>FIPS 81</a>.
*/
public class FIPSDESTest
implements Test
{
static String[] fips1Tests =
{
"DES/ECB/NoPadding",
"3fa40e8a984d48156a271787ab8883f9893d51ec4b563b53",
"DES/CBC/NoPadding",
"e5c7cdde872bf27c43e934008c389c0f683788499a7c05f6",
"DES/CFB/NoPadding",
"f3096249c7f46e51a69e839b1a92f78403467133898ea622"
};
static String[] fips2Tests =
{
"DES/CFB8/NoPadding",
"f31fda07011462ee187f",
"DES/OFB8/NoPadding",
"f34a2850c9c64985d684"
};
static byte[] input1 = Hex.decode("4e6f77206973207468652074696d6520666f7220616c6c20");
static byte[] input2 = Hex.decode("4e6f7720697320746865");
public String getName()
{
return "FIPSDESTest";
}
private boolean equalArray(
byte[] a,
byte[] b)
{
if (a.length != b.length)
{
return false;
}
for (int i = 0; i != a.length; i++)
{
if (a[i] != b[i])
{
return false;
}
}
return true;
}
public TestResult test(
String algorithm,
byte[] input,
byte[] output)
{
Key key;
Cipher in, out;
CipherInputStream cIn;
CipherOutputStream cOut;
ByteArrayInputStream bIn;
ByteArrayOutputStream bOut;
IvParameterSpec spec = new IvParameterSpec(Hex.decode("1234567890abcdef"));
try
{
String baseAlgorithm;
key = new SecretKeySpec(Hex.decode("0123456789abcdef"), "DES");
in = Cipher.getInstance(algorithm, "BC");
out = Cipher.getInstance(algorithm, "BC");
if (algorithm.startsWith("DES/ECB"))
{
out.init(Cipher.ENCRYPT_MODE, key);
}
else
{
out.init(Cipher.ENCRYPT_MODE, key, spec);
}
}
catch (Exception e)
{
return new SimpleTestResult(false, getName() + ": " + algorithm + " failed initialisation - " + e.toString(), e);
}
try
{
if (algorithm.startsWith("DES/ECB"))
{
in.init(Cipher.DECRYPT_MODE, key);
}
else
{
in.init(Cipher.DECRYPT_MODE, key, spec);
}
}
catch (Exception e)
{
return new SimpleTestResult(false, getName() + ": " + algorithm + " failed initialisation - " + e.toString(), e);
}
//
// encryption pass
//
bOut = new ByteArrayOutputStream();
cOut = new CipherOutputStream(bOut, out);
try
{
for (int i = 0; i != input.length / 2; i++)
{
cOut.write(input[i]);
}
cOut.write(input, input.length / 2, input.length - input.length / 2);
cOut.close();
}
catch (IOException e)
{
return new SimpleTestResult(false, getName() + ": " + algorithm + " failed encryption - " + e.toString());
}
byte[] bytes;
bytes = bOut.toByteArray();
if (!equalArray(bytes, output))
{
return new SimpleTestResult(false, getName() + ": " + algorithm + " failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
}
//
// decryption pass
//
bIn = new ByteArrayInputStream(bytes);
cIn = new CipherInputStream(bIn, in);
try
{
DataInputStream dIn = new DataInputStream(cIn);
bytes = new byte[input.length];
for (int i = 0; i != input.length / 2; i++)
{
bytes[i] = (byte)dIn.read();
}
dIn.readFully(bytes, input.length / 2, bytes.length - input.length / 2);
}
catch (Exception e)
{
return new SimpleTestResult(false, getName() + ": " + algorithm + " failed encryption - " + e.toString());
}
if (!equalArray(bytes, input))
{
return new SimpleTestResult(false, getName() + ": " + algorithm + " failed decryption - expected " + new String(Hex.encode(input)) + " got " + new String(Hex.encode(bytes)));
}
return new SimpleTestResult(true, getName() + ": " + algorithm + " Okay");
}
public TestResult perform()
{
for (int i = 0; i != fips1Tests.length; i += 2)
{
TestResult result;
result = test(fips1Tests[i], input1, Hex.decode(fips1Tests[i + 1]));
if (!result.isSuccessful())
{
return result;
}
}
for (int i = 0; i != fips2Tests.length; i += 2)
{
TestResult result;
result = test(fips2Tests[i], input2, Hex.decode(fips2Tests[i + 1]));
if (!result.isSuccessful())
{
return result;
}
}
return new SimpleTestResult(true, getName() + ": Okay");
}
public static void main(
String[] args)
throws KeyException, InvalidAlgorithmParameterException
{
Security.addProvider(new BouncyCastleProvider());
Test test = new FIPSDESTest();
TestResult result = test.perform();
System.out.println(result.toString());
}
}
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