package gnu.testlet.gnu.crypto.cipher;
// ----------------------------------------------------------------------------
// $Id: TestOfTripleDES.java,v 1.5 2005/10/06 04:24:19 rsdio Exp $
//
// Copyright (C) 2001, 2002, 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.Properties;
import gnu.crypto.cipher.IBlockCipher;
import gnu.crypto.cipher.TripleDES;
import gnu.crypto.util.Util;
import gnu.testlet.TestHarness;
import java.util.Arrays;
import java.util.HashMap;
/**
* <p>Conformance test for the Triple-DES cipher.</p>
*
* @version $Revision: 1.5 $
*/
public class TestOfTripleDES extends BaseCipherTestCase {
// Constants and variables.
// -----------------------------------------------------------------------
/*
* Test vectors from the "Triple DES Monte Carlo (Modes) Test Sample
* Results", from <a
* href="http://csrc.nist.gov/cryptval/des/tripledes-vectors.zip">http://csrc.nist.gov/cryptval/des/tripledes-vectors.zip</a>.
*/
/**
* The ECB encryption monte-carlo tests.
*/
static final String[][] E_TV = {
// key bytes
// plain bytes cipher bytes
{ "0123456789abcdef0123456789abcdef0123456789abcdef",
"4e6f772069732074", "6a2a19f41eca854b" },
{ "0123456789abcdef23456789abcdef010123456789abcdef",
"4e6f772069732074", "03e69f5bfa58eb42" },
{ "0123456789abcdef23456789abcdef01456789abcdef0123",
"4e6f772069732074", "dd17e8b8b437d232" },
{ "6b085d92976149a46b085d92976149a46b085d92976149a4",
"6a2a19f41eca854b", "ce5d6c7b63177c18" },
{ "02c4da3d73f226ad1cbce0f2bacd3b1502c4da3d73f226ad",
"03e69f5bfa58eb42", "262a60f9743e1fd8" },
{ "dc34addf3d9d1fdc976d456702cef4fdad49c2ba0b2f975b",
"dd17e8b8b437d232", "3145bcfc1c19382f" }
};
/**
* The ECB decryption monte-carlo tests.
*/
static final String[][] D_TV = {
{ "0123456789abcdef0123456789abcdef0123456789abcdef",
"4e6f772069732074", "cdd64f2f9427c15d" },
{ "0123456789abcdef23456789abcdef010123456789abcdef",
"4e6f772069732074", "6996c8fa47a2abeb" },
{ "0123456789abcdef23456789abcdef01456789abcdef0123",
"4e6f772069732074", "8325397644091a0a" },
{ "cdf40b491c8c0db3cdf40b491c8c0db3cdf40b491c8c0db3",
"cdd64f2f9427c15d", "5bb675e3db3a7f3b" },
{ "68b58c9dce086704529dce3719e9e0da68b58c9dce086704",
"6996c8fa47a2abeb", "6b177e016e6ae12d" },
{ "83077c10cda2d6e5296240fd8c834fcd8fdac4fbe5ae978f",
"8325397644091a0a", "c67901abdc008c89" }
};
// Constructors.
// -----------------------------------------------------------------------
// default 0-arguments constructor
// Class methods.
// -----------------------------------------------------------------------
// Instance methods.
// -----------------------------------------------------------------------
public void test(TestHarness harness) {
harness.checkPoint("TestOfTripleDES");
cipher = new TripleDES();
HashMap attrib = new HashMap();
attrib.put(IBlockCipher.CIPHER_BLOCK_SIZE, new Integer(8));
attrib.put(IBlockCipher.KEY_MATERIAL, new byte[24]);
boolean oldCheckForWeakKeys = Properties.checkForWeakKeys();
try {
Properties.setCheckForWeakKeys(false);
harness.check(validityTest(), "validityTest()");
harness.check(cloneabilityTest(), "cloneabilityTest()");
harness.check(vectorsTest(), "vectorsTest()");
} catch (Exception x) {
harness.debug(x);
harness.fail("TestOfTripleDES");
} finally { // return it to its previous value
Properties.setCheckForWeakKeys(oldCheckForWeakKeys);
}
}
/** 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];
for (int i = 0; i < E_TV.length; i++) {
kb = Util.toBytesFromString(E_TV[i][0]);
pt = Util.toBytesFromString(E_TV[i][1]);
ct1 = Util.toBytesFromString(E_TV[i][2]);
attrib.put(IBlockCipher.KEY_MATERIAL, kb);
cipher.reset();
cipher.init(attrib);
cipher.encryptBlock(pt, 0, ct2, 0);
for (int j = 0; j < 9999; j++) {
cipher.encryptBlock(ct2, 0, ct2, 0);
}
if (!Arrays.equals(ct1, ct2)) {
return false;
}
}
for (int i = 0; i < D_TV.length; i++) {
kb = Util.toBytesFromString(D_TV[i][0]);
pt = Util.toBytesFromString(D_TV[i][1]);
ct1 = Util.toBytesFromString(D_TV[i][2]);
attrib.put(IBlockCipher.KEY_MATERIAL, kb);
cipher.reset();
cipher.init(attrib);
cipher.decryptBlock(pt, 0, ct2, 0);
for (int j = 0; j < 9999; j++) {
cipher.decryptBlock(ct2, 0, ct2, 0);
}
if (!Arrays.equals(ct1, ct2)) {
return false;
}
}
return true;
}
}