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/*
* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4923484 8146293
* @summary encryption/decryption test for using OAEPParameterSpec.
* @author Valerie Peng
*/
import java.util.*;
import java.security.*;
import java.security.spec.MGF1ParameterSpec;
import javax.crypto.*;
import javax.crypto.spec.PSource;
import javax.crypto.spec.OAEPParameterSpec;
public class TestOAEPWithParams {
private static Provider cp;
private static PrivateKey privateKey;
private static PublicKey publicKey;
private static Random random = new Random();
private static String MD[] = {
"MD5", "SHA1", "SHA-224", "SHA-256", "SHA-512/224", "SHA-512/256"
};
private static int DATA_LENGTH[] = {
62, 54, 34, 30, 34, 30
};
public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
cp = Security.getProvider("SunJCE");
System.out.println("Testing provider " + cp.getName() + "...");
Provider kfp = Security.getProvider("SunRsaSign");
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", kfp);
kpg.initialize(768);
KeyPair kp = kpg.generateKeyPair();
privateKey = kp.getPrivate();
publicKey = kp.getPublic();
for (int i = 0; i < MD.length; i++) {
// basic test using MD5
testEncryptDecrypt(MD[i], DATA_LENGTH[i]);
}
long stop = System.currentTimeMillis();
System.out.println("Done (" + (stop - start) + " ms).");
}
private static void testEncryptDecrypt(String hashAlg, int dataLength)
throws Exception {
System.out.println("Testing OAEP with hash " + hashAlg + ", " + dataLength + " bytes");
Cipher c = Cipher.getInstance("RSA/ECB/OAEPwith" + hashAlg +
"andMGF1Padding", cp);
byte[] pSrc1 = { (byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0x01,
(byte) 0x02, (byte) 0x02, (byte) 0x02, (byte) 0x02
};
byte[] pSrc2 = { (byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0x01,
(byte) 0x02, (byte) 0x02, (byte) 0x03, (byte) 0x04
};
OAEPParameterSpec spec1 = new OAEPParameterSpec(hashAlg,
"MGF1", MGF1ParameterSpec.SHA1, new PSource.PSpecified(pSrc1));
OAEPParameterSpec spec2 = new OAEPParameterSpec(hashAlg,
"MGF1", MGF1ParameterSpec.SHA1, new PSource.PSpecified(pSrc2));
byte[] plainText = new byte[dataLength];
byte[] cipherText, recovered;
// do encryption with parameters#1
System.out.println("Testing with user-supplied parameters...");
c.init(Cipher.ENCRYPT_MODE, publicKey, spec1);
cipherText = c.doFinal(plainText);
// test#1: decrypt with parameters#1
c.init(Cipher.DECRYPT_MODE, privateKey, spec1);
recovered = c.doFinal(cipherText);
if (Arrays.equals(plainText, recovered) == false) {
throw new Exception("Decrypted data does not match");
}
// test#2: decrypt without parameters
c.init(Cipher.DECRYPT_MODE, privateKey);
try {
recovered = c.doFinal(cipherText);
throw new Exception("Should throw BadPaddingException");
} catch (BadPaddingException bpe) {
// expected
}
// test#3: decrypt with different parameters
c.init(Cipher.DECRYPT_MODE, privateKey, spec2);
try {
recovered = c.doFinal(cipherText);
throw new Exception("Should throw BadPaddingException");
} catch (BadPaddingException bpe) {
// expected
}
// do encryption without parameters
System.out.println("Testing with cipher default parameters...");
c.init(Cipher.ENCRYPT_MODE, publicKey);
cipherText = c.doFinal(plainText);
// test#1: decrypt with parameters got from cipher
AlgorithmParameters params = c.getParameters();
c.init(Cipher.DECRYPT_MODE, privateKey, params);
recovered = c.doFinal(cipherText);
if (Arrays.equals(plainText, recovered) == false) {
throw new Exception("Decrypted data does not match");
}
// test#2: decrypt without parameters
c.init(Cipher.DECRYPT_MODE, privateKey);
recovered = c.doFinal(cipherText);
if (Arrays.equals(plainText, recovered) == false) {
throw new Exception("Decrypted data does not match");
}
// test#3: decrypt with different parameters
c.init(Cipher.DECRYPT_MODE, privateKey, spec2);
try {
recovered = c.doFinal(cipherText);
throw new Exception("Should throw BadPaddingException");
} catch (BadPaddingException bpe) {
// expected
}
}
}
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