225 lines
8.4 KiB
Java
225 lines
8.4 KiB
Java
/*
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* Copyright (c) 1998, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 0000000
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* @summary DHKeyAgreement3
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* @author Jan Luehe
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*/
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import java.io.*;
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import java.math.BigInteger;
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import java.security.*;
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import java.security.spec.*;
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import java.security.interfaces.*;
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import java.util.HexFormat;
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import javax.crypto.*;
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import javax.crypto.spec.*;
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import javax.crypto.interfaces.*;
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/**
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* This test utility executes the Diffie-Hellman key agreement protocol
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* between 3 parties: Alice, Bob, and Carol.
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*
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* We use the same 1024 bit prime modulus and base generator that are used by
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* SKIP.
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*/
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public class DHKeyAgreement3 {
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// Hex formatter to upper case with ":" delimiter
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private static final HexFormat HEX_FORMATTER = HexFormat.ofDelimiter(":").withUpperCase();
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private DHKeyAgreement3() {}
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public static void main(String argv[]) throws Exception {
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DHKeyAgreement3 keyAgree = new DHKeyAgreement3();
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keyAgree.run();
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System.out.println("Test Passed");
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}
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private void run() throws Exception {
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DHParameterSpec dhSkipParamSpec;
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System.err.println("Using SKIP Diffie-Hellman parameters");
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dhSkipParamSpec = new DHParameterSpec(skip1024Modulus, skip1024Base);
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// Alice creates her own DH key pair
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System.err.println("ALICE: Generate DH keypair ...");
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KeyPairGenerator aliceKpairGen = KeyPairGenerator.getInstance("DH", "SunJCE");
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aliceKpairGen.initialize(dhSkipParamSpec);
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KeyPair aliceKpair = aliceKpairGen.generateKeyPair();
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// Bob creates his own DH key pair
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System.err.println("BOB: Generate DH keypair ...");
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KeyPairGenerator bobKpairGen = KeyPairGenerator.getInstance("DH", "SunJCE");
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bobKpairGen.initialize(dhSkipParamSpec);
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KeyPair bobKpair = bobKpairGen.generateKeyPair();
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// Carol creates her own DH key pair
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System.err.println("CAROL: Generate DH keypair ...");
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KeyPairGenerator carolKpairGen = KeyPairGenerator.getInstance("DH", "SunJCE");
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carolKpairGen.initialize(dhSkipParamSpec);
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KeyPair carolKpair = carolKpairGen.generateKeyPair();
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// Alice initialize
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System.err.println("ALICE: Initialize ...");
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KeyAgreement aliceKeyAgree = KeyAgreement.getInstance("DH", "SunJCE");
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aliceKeyAgree.init(aliceKpair.getPrivate());
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// Bob initialize
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System.err.println("BOB: Initialize ...");
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KeyAgreement bobKeyAgree = KeyAgreement.getInstance("DH", "SunJCE");
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bobKeyAgree.init(bobKpair.getPrivate());
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// Carol initialize
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System.err.println("CAROL: Initialize ...");
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KeyAgreement carolKeyAgree = KeyAgreement.getInstance("DH", "SunJCE");
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carolKeyAgree.init(carolKpair.getPrivate());
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// Alice uses Carol's public key
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Key ac = aliceKeyAgree.doPhase(carolKpair.getPublic(), false);
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// Bob uses Alice's public key
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Key ba = bobKeyAgree.doPhase(aliceKpair.getPublic(), false);
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// Carol uses Bob's public key
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Key cb = carolKeyAgree.doPhase(bobKpair.getPublic(), false);
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// Alice uses Carol's result from above
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aliceKeyAgree.doPhase(cb, true);
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// Bob uses Alice's result from above
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bobKeyAgree.doPhase(ac, true);
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// Carol uses Bob's result from above
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carolKeyAgree.doPhase(ba, true);
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// Alice, Bob and Carol compute their secrets
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byte[] aliceSharedSecret = aliceKeyAgree.generateSecret();
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int aliceLen = aliceSharedSecret.length;
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System.out.println("Alice secret: " + HEX_FORMATTER.formatHex(aliceSharedSecret));
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byte[] bobSharedSecret = bobKeyAgree.generateSecret();
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int bobLen = bobSharedSecret.length;
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System.out.println("Bob secret: " + HEX_FORMATTER.formatHex(bobSharedSecret));
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byte[] carolSharedSecret = carolKeyAgree.generateSecret();
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int carolLen = carolSharedSecret.length;
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System.out.println("Carol secret: " + HEX_FORMATTER.formatHex(carolSharedSecret));
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// Compare Alice and Bob
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if (aliceLen != bobLen) {
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throw new Exception("Alice and Bob have different lengths");
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}
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for (int i=0; i<aliceLen; i++) {
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if (aliceSharedSecret[i] != bobSharedSecret[i]) {
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throw new Exception("Alice and Bob differ");
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}
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}
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System.err.println("Alice and Bob are the same");
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// Compare Bob and Carol
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if (bobLen != carolLen) {
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throw new Exception("Bob and Carol have different lengths");
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}
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for (int i=0; i<bobLen; i++) {
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if (bobSharedSecret[i] != carolSharedSecret[i]) {
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throw new Exception("Bob and Carol differ");
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}
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}
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System.err.println("Bob and Carol are the same");
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}
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/*
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* Converts a byte to hex digit and writes to the supplied buffer
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*/
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private void byte2hex(byte b, StringBuffer buf) {
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char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
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'9', 'A', 'B', 'C', 'D', 'E', 'F' };
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int high = ((b & 0xf0) >> 4);
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int low = (b & 0x0f);
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buf.append(hexChars[high]);
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buf.append(hexChars[low]);
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}
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/*
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* Prints the usage of this test.
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*/
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private void usage() {
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System.err.print("DHKeyAgreement usage: ");
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System.err.println("[-gen]");
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}
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// The 1024 bit Diffie-Hellman modulus values used by SKIP
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private static final byte skip1024ModulusBytes[] = {
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(byte)0xF4, (byte)0x88, (byte)0xFD, (byte)0x58,
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(byte)0x4E, (byte)0x49, (byte)0xDB, (byte)0xCD,
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(byte)0x20, (byte)0xB4, (byte)0x9D, (byte)0xE4,
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(byte)0x91, (byte)0x07, (byte)0x36, (byte)0x6B,
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(byte)0x33, (byte)0x6C, (byte)0x38, (byte)0x0D,
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(byte)0x45, (byte)0x1D, (byte)0x0F, (byte)0x7C,
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(byte)0x88, (byte)0xB3, (byte)0x1C, (byte)0x7C,
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(byte)0x5B, (byte)0x2D, (byte)0x8E, (byte)0xF6,
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(byte)0xF3, (byte)0xC9, (byte)0x23, (byte)0xC0,
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(byte)0x43, (byte)0xF0, (byte)0xA5, (byte)0x5B,
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(byte)0x18, (byte)0x8D, (byte)0x8E, (byte)0xBB,
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(byte)0x55, (byte)0x8C, (byte)0xB8, (byte)0x5D,
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(byte)0x38, (byte)0xD3, (byte)0x34, (byte)0xFD,
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(byte)0x7C, (byte)0x17, (byte)0x57, (byte)0x43,
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(byte)0xA3, (byte)0x1D, (byte)0x18, (byte)0x6C,
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(byte)0xDE, (byte)0x33, (byte)0x21, (byte)0x2C,
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(byte)0xB5, (byte)0x2A, (byte)0xFF, (byte)0x3C,
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(byte)0xE1, (byte)0xB1, (byte)0x29, (byte)0x40,
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(byte)0x18, (byte)0x11, (byte)0x8D, (byte)0x7C,
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(byte)0x84, (byte)0xA7, (byte)0x0A, (byte)0x72,
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(byte)0xD6, (byte)0x86, (byte)0xC4, (byte)0x03,
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(byte)0x19, (byte)0xC8, (byte)0x07, (byte)0x29,
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(byte)0x7A, (byte)0xCA, (byte)0x95, (byte)0x0C,
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(byte)0xD9, (byte)0x96, (byte)0x9F, (byte)0xAB,
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(byte)0xD0, (byte)0x0A, (byte)0x50, (byte)0x9B,
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(byte)0x02, (byte)0x46, (byte)0xD3, (byte)0x08,
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(byte)0x3D, (byte)0x66, (byte)0xA4, (byte)0x5D,
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(byte)0x41, (byte)0x9F, (byte)0x9C, (byte)0x7C,
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(byte)0xBD, (byte)0x89, (byte)0x4B, (byte)0x22,
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(byte)0x19, (byte)0x26, (byte)0xBA, (byte)0xAB,
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(byte)0xA2, (byte)0x5E, (byte)0xC3, (byte)0x55,
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(byte)0xE9, (byte)0x2F, (byte)0x78, (byte)0xC7
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};
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// The SKIP 1024 bit modulus
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private static final BigInteger skip1024Modulus
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= new BigInteger(1, skip1024ModulusBytes);
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// The base used with the SKIP 1024 bit modulus
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private static final BigInteger skip1024Base = BigInteger.valueOf(2);
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}
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