package gnu.testlet.gnu.crypto.cipher;
// ----------------------------------------------------------------------------
// Id: $
//
// Copyright (C) 2003 Free Software Foundation, Inc.
//
// This file is part of GNU Crypto.
//
// GNU Crypto is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// GNU Crypto 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 for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING. If not, write to the
//
// Free Software Foundation Inc.,
// 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301
// USA
//
// Linking this library statically or dynamically with other modules is
// making a combined work based on this library. Thus, the terms and
// conditions of the GNU General Public License cover the whole
// combination.
//
// As a special exception, the copyright holders of this library give
// you permission to link this library with independent modules to
// produce an executable, regardless of the license terms of these
// independent modules, and to copy and distribute the resulting
// executable under terms of your choice, provided that you also meet,
// for each linked independent module, the terms and conditions of the
// license of that module. An independent module is a module which is
// not derived from or based on this library. If you modify this
// library, you may extend this exception to your version of the
// library, but you are not obligated to do so. If you do not wish to
// do so, delete this exception statement from your version.
// ----------------------------------------------------------------------------
// Tags: GNU-CRYPTO
// Uses: BaseCipherTestCase
import gnu.crypto.cipher.Cast5;
import gnu.crypto.cipher.IBlockCipher;
import gnu.crypto.util.Util;
import gnu.testlet.TestHarness;
import java.util.Arrays;
import java.util.HashMap;
/**
* <p>Conformance test for the <code>CAST5</code> cipher. Test vectors are as
* per RFC-2144.</p>
*
* @version Revision: $
*/
public class TestOfCast5 extends BaseCipherTestCase {
// Constants and variables
// -------------------------------------------------------------------------
/**
* 128-bit key = 01 23 45 67 12 34 56 78 23 45 67 89 34 56 78 9A
* plaintext = 01 23 45 67 89 AB CD EF
* ciphertext = 23 8B 4F E5 84 7E 44 B2
* 80-bit key = 01 23 45 67 12 34 56 78 23 45
* = 01 23 45 67 12 34 56 78 23 45 00 00 00 00 00 00
* plaintext = 01 23 45 67 89 AB CD EF
* ciphertext = EB 6A 71 1A 2C 02 27 1B
*/
private static final String[][] TV = {
// key plaintext ciphertext
{"0123456712345678234567893456789A", "0123456789ABCDEF", "238B4FE5847E44B2"},
{"01234567123456782345", "0123456789ABCDEF", "EB6A711A2C02271B"}
};
// Constructor(s)
// -------------------------------------------------------------------------
// default 0-arguments constructor
// Class methods
// -------------------------------------------------------------------------
// Instance methods
// -------------------------------------------------------------------------
public void test(TestHarness harness) {
harness.checkPoint("TestOfCast5");
cipher = new Cast5();
HashMap attrib = new HashMap();
attrib.put(IBlockCipher.CIPHER_BLOCK_SIZE, new Integer(8));
attrib.put(IBlockCipher.KEY_MATERIAL, new byte[16]);
try {
harness.check(validityTest(), "validityTest()");
harness.check(cloneabilityTest(), "cloneabilityTest()");
harness.check(vectorsTest(), "vectorsTest()");
} catch (Exception x) {
harness.debug(x);
harness.fail("TestOfCast5");
}
}
/** Test cloneability. */
protected boolean cloneabilityTest() throws Exception {
int blockSize = cipher.defaultBlockSize();
int keySize = cipher.defaultKeySize();
byte[] pt = new byte[blockSize];
byte[] ct1 = new byte[blockSize];
byte[] ct2 = new byte[blockSize];
byte[] kb = new byte[keySize];
HashMap attributes = new HashMap();
attributes.put(IBlockCipher.KEY_MATERIAL, kb);
cipher.reset();
cipher.init(attributes);
cipher.encryptBlock(pt, 0, pt, 0);
IBlockCipher thomas = (IBlockCipher) cipher.clone();
thomas.init(attributes);
cipher.encryptBlock(pt, 0, ct1, 0);
thomas.encryptBlock(pt, 0, ct2, 0);
return Arrays.equals(ct1, ct2);
}
protected boolean vectorsTest() throws Exception {
HashMap attrib = new HashMap();
byte[] kb, pt, ct1, ct2 = new byte[8], cpt = new byte[8];
for (int i = 0; i < TV.length; i++) {
kb = Util.toBytesFromString(TV[i][0]);
pt = Util.toBytesFromString(TV[i][1]);
ct1 = Util.toBytesFromString(TV[i][2]);
attrib.put(IBlockCipher.KEY_MATERIAL, kb);
cipher.reset();
cipher.init(attrib);
cipher.encryptBlock(pt, 0, ct2, 0);
if (!Arrays.equals(ct1, ct2)) {
return false;
}
cipher.decryptBlock(ct2, 0, cpt, 0);
if (!Arrays.equals(pt, cpt)) {
return false;
}
}
return true;
}
}