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package org.spongycastle.jce.provider.test;
import java.security.AlgorithmParameters;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.MessageDigest;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Security;
import java.security.spec.PKCS8EncodedKeySpec;
import javax.crypto.Cipher;
import javax.crypto.EncryptedPrivateKeyInfo;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
import org.spongycastle.jce.provider.BouncyCastleProvider;
import org.spongycastle.util.test.SimpleTestResult;
import org.spongycastle.util.test.Test;
import org.spongycastle.util.test.TestResult;
public class EncryptedPrivateKeyInfoTest
implements Test
{
String alg = "1.2.840.113549.1.12.1.3"; // 3 key triple DES with SHA-1
public TestResult perform()
{
try
{
KeyPairGenerator fact = KeyPairGenerator.getInstance("RSA", "SC");
fact.initialize(512, new SecureRandom());
KeyPair keyPair = fact.generateKeyPair();
PrivateKey priKey = keyPair.getPrivate();
PublicKey pubKey = keyPair.getPublic();
//
// set up the parameters
//
byte[] salt = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
int iterationCount = 100;
PBEParameterSpec defParams = new PBEParameterSpec(salt, iterationCount);
AlgorithmParameters params = AlgorithmParameters.getInstance(alg, "SC");
params.init(defParams);
//
// set up the key
//
char[] password1 = { 'h', 'e', 'l', 'l', 'o' };
PBEKeySpec pbeSpec = new PBEKeySpec(password1);
SecretKeyFactory keyFact = SecretKeyFactory.getInstance(alg, "SC");
Cipher cipher = Cipher.getInstance(alg, "SC");
cipher.init(Cipher.WRAP_MODE, keyFact.generateSecret(pbeSpec), params);
byte[] wrappedKey = cipher.wrap(priKey);
//
// create encrypted object
//
EncryptedPrivateKeyInfo pInfo = new EncryptedPrivateKeyInfo(params, wrappedKey);
//
// decryption step
//
char[] password2 = { 'h', 'e', 'l', 'l', 'o' };
pbeSpec = new PBEKeySpec(password2);
cipher = Cipher.getInstance(pInfo.getAlgName(), "SC");
cipher.init(Cipher.DECRYPT_MODE, keyFact.generateSecret(pbeSpec), pInfo.getAlgParameters());
PKCS8EncodedKeySpec keySpec = pInfo.getKeySpec(cipher);
if (!MessageDigest.isEqual(priKey.getEncoded(), keySpec.getEncoded()))
{
return new SimpleTestResult(false, "Private key does not match");
}
//
// using Cipher parameters test
//
pbeSpec = new PBEKeySpec(password1);
keyFact = SecretKeyFactory.getInstance(alg, "SC");
cipher = Cipher.getInstance(alg, "SC");
cipher.init(Cipher.WRAP_MODE, keyFact.generateSecret(pbeSpec), params);
wrappedKey = cipher.wrap(priKey);
//
// create encrypted object
//
pInfo = new EncryptedPrivateKeyInfo(cipher.getParameters(), wrappedKey);
//
// decryption step
//
pbeSpec = new PBEKeySpec(password2);
cipher = Cipher.getInstance(pInfo.getAlgName(), "SC");
cipher.init(Cipher.DECRYPT_MODE, keyFact.generateSecret(pbeSpec), pInfo.getAlgParameters());
keySpec = pInfo.getKeySpec(cipher);
if (!MessageDigest.isEqual(priKey.getEncoded(), keySpec.getEncoded()))
{
return new SimpleTestResult(false, "Private key does not match");
}
return new SimpleTestResult(true, getName() + ": Okay");
}
catch (Exception e)
{
return new SimpleTestResult(false, getName() + ": exception - " + e.toString(), e);
}
}
public String getName()
{
return "EncryptedPrivateKeyInfoTest";
}
public static void main(
String[] args)
{
Security.addProvider(new BouncyCastleProvider());
Test test = new EncryptedPrivateKeyInfoTest();
TestResult result = test.perform();
System.out.println(result.toString());
}
}
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