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/*
* Copyright (c) 1998, 2015, 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 0000000
* @library ../UTIL
* @build TestUtil
* @run main BlowfishTestVector
* @summary Known Answer Test for Blowfish cipher with ECB mode
* @author Jan Luehe
*/
import java.security.*;
import java.util.*;
import javax.crypto.*;
import javax.crypto.spec.*;
public class BlowfishTestVector {
// test vector #1 (checking for the "signed" bug)
// (ECB mode)
private static final byte[] TEST_KEY_1 = new byte[] {
(byte)0x1c, (byte)0x58, (byte)0x7f, (byte)0x1c,
(byte)0x13, (byte)0x92, (byte)0x4f, (byte)0xef
};
private static final byte[] TV_P1 = new byte[] {
(byte)0x30, (byte)0x55, (byte)0x32, (byte)0x28,
(byte)0x6d, (byte)0x6f, (byte)0x29, (byte)0x5a
};
private static final byte[] TV_C1 = new byte[] {
(byte)0x55, (byte)0xcb, (byte)0x37, (byte)0x74,
(byte)0xd1, (byte)0x3e, (byte)0xf2, (byte)0x01
};
// test vector #2 (offical vector by Bruce Schneier)
// (ECB mode)
private static final String S_TEST_KEY_2 = "Who is John Galt?";
private static final byte[] TV_P2 = new byte[] {
(byte)0xfe, (byte)0xdc, (byte)0xba, (byte)0x98,
(byte)0x76, (byte)0x54, (byte)0x32, (byte)0x10
};
private static final byte[] TV_C2 = new byte[] {
(byte)0xcc, (byte)0x91, (byte)0x73, (byte)0x2b,
(byte)0x80, (byte)0x22, (byte)0xf6, (byte)0x84
};
public static void main(String[] argv) throws Exception {
String transformation = "Blowfish/ECB/NoPadding";
Cipher cipher = Cipher.getInstance(transformation, "SunJCE");
int MAX_KEY_SIZE = Cipher.getMaxAllowedKeyLength(transformation);
//
// test 1
//
if (TEST_KEY_1.length*8 <= MAX_KEY_SIZE) {
SecretKey sKey = new SecretKeySpec(TEST_KEY_1, "Blowfish");
try {
cipher.init(Cipher.ENCRYPT_MODE, sKey);
byte[] c1 = cipher.doFinal(TV_P1);
if (!Arrays.equals(c1, TV_C1))
throw new Exception("Encryption (Test vector 1) failed");
cipher.init(Cipher.DECRYPT_MODE, sKey);
byte[] p1 = cipher.doFinal(c1);
if (!Arrays.equals(p1, TV_P1))
throw new Exception("Decryption (Test vector 1) failed");
} catch (SecurityException se) {
TestUtil.handleSE(se);
}
}
//
// test 2
//
byte[] testKey2 = S_TEST_KEY_2.getBytes();
if (testKey2.length*8 <= MAX_KEY_SIZE) {
SecretKey sKey = new SecretKeySpec(testKey2, "Blowfish");
try {
cipher.init(Cipher.ENCRYPT_MODE, sKey);
byte[] c2 = cipher.doFinal(TV_P2);
if (!Arrays.equals(c2, TV_C2))
throw new Exception("Encryption (Test vector 2) failed");
cipher.init(Cipher.DECRYPT_MODE, sKey);
byte[] p2 = cipher.doFinal(c2);
if (!Arrays.equals(p2, TV_P2))
throw new Exception("Decryption (Test vector 2) failed");
} catch (SecurityException se) {
TestUtil.handleSE(se);
}
}
System.out.println("Test passed");
}
/*
* Converts a byte to hex digit and writes to the supplied buffer
*/
static private void byte2hex(byte b, StringBuffer buf) {
char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
'9', 'A', 'B', 'C', 'D', 'E', 'F' };
int high = ((b & 0xf0) >> 4);
int low = (b & 0x0f);
buf.append(hexChars[high]);
buf.append(hexChars[low]);
}
/*
* Converts a byte array to hex string
*/
static private String toHexString(byte[] block) {
StringBuffer buf = new StringBuffer();
int len = block.length;
for (int i = 0; i < len; i++) {
byte2hex(block[i], buf);
if (i < len-1) {
buf.append(":");
}
}
return buf.toString();
}
}
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