0N/A/*
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0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
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0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/A/*
0N/A * @test
0N/A * @bug 0000000
0N/A * @summary DHKeyAgreement3
0N/A * @author Jan Luehe
0N/A */
0N/A
0N/Aimport java.io.*;
0N/Aimport java.math.BigInteger;
0N/Aimport java.security.*;
0N/Aimport java.security.spec.*;
0N/Aimport java.security.interfaces.*;
0N/Aimport javax.crypto.*;
0N/Aimport javax.crypto.spec.*;
0N/Aimport javax.crypto.interfaces.*;
0N/Aimport com.sun.crypto.provider.SunJCE;
0N/A
0N/A/**
0N/A * This test utility executes the Diffie-Hellman key agreement protocol
0N/A * between 3 parties: Alice, Bob, and Carol.
0N/A *
0N/A * We use the same 1024 bit prime modulus and base generator that are used by
0N/A * SKIP.
0N/A */
0N/A
0N/Apublic class DHKeyAgreement3 {
0N/A
0N/A private DHKeyAgreement3() {}
0N/A
0N/A public static void main(String argv[]) throws Exception {
0N/A // Add JCE to the list of providers
0N/A SunJCE jce = new SunJCE();
0N/A Security.addProvider(jce);
0N/A
0N/A DHKeyAgreement3 keyAgree = new DHKeyAgreement3();
0N/A keyAgree.run();
0N/A System.out.println("Test Passed");
0N/A }
0N/A
0N/A private void run() throws Exception {
0N/A
0N/A DHParameterSpec dhSkipParamSpec;
0N/A
0N/A System.err.println("Using SKIP Diffie-Hellman parameters");
0N/A dhSkipParamSpec = new DHParameterSpec(skip1024Modulus, skip1024Base);
0N/A
0N/A // Alice creates her own DH key pair
0N/A System.err.println("ALICE: Generate DH keypair ...");
0N/A KeyPairGenerator aliceKpairGen = KeyPairGenerator.getInstance("DH");
0N/A aliceKpairGen.initialize(dhSkipParamSpec);
0N/A KeyPair aliceKpair = aliceKpairGen.generateKeyPair();
0N/A
0N/A // Bob creates his own DH key pair
0N/A System.err.println("BOB: Generate DH keypair ...");
0N/A KeyPairGenerator bobKpairGen = KeyPairGenerator.getInstance("DH");
0N/A bobKpairGen.initialize(dhSkipParamSpec);
0N/A KeyPair bobKpair = bobKpairGen.generateKeyPair();
0N/A
0N/A // Carol creates her own DH key pair
0N/A System.err.println("CAROL: Generate DH keypair ...");
0N/A KeyPairGenerator carolKpairGen = KeyPairGenerator.getInstance("DH");
0N/A carolKpairGen.initialize(dhSkipParamSpec);
0N/A KeyPair carolKpair = carolKpairGen.generateKeyPair();
0N/A
0N/A
0N/A // Alice initialize
0N/A System.err.println("ALICE: Initialize ...");
0N/A KeyAgreement aliceKeyAgree = KeyAgreement.getInstance("DH");
0N/A aliceKeyAgree.init(aliceKpair.getPrivate());
0N/A
0N/A // Bob initialize
0N/A System.err.println("BOB: Initialize ...");
0N/A KeyAgreement bobKeyAgree = KeyAgreement.getInstance("DH");
0N/A bobKeyAgree.init(bobKpair.getPrivate());
0N/A
0N/A // Carol initialize
0N/A System.err.println("CAROL: Initialize ...");
0N/A KeyAgreement carolKeyAgree = KeyAgreement.getInstance("DH");
0N/A carolKeyAgree.init(carolKpair.getPrivate());
0N/A
0N/A
0N/A // Alice uses Carol's public key
0N/A Key ac = aliceKeyAgree.doPhase(carolKpair.getPublic(), false);
0N/A
0N/A // Bob uses Alice's public key
0N/A Key ba = bobKeyAgree.doPhase(aliceKpair.getPublic(), false);
0N/A
0N/A // Carol uses Bob's public key
0N/A Key cb = carolKeyAgree.doPhase(bobKpair.getPublic(), false);
0N/A
0N/A
0N/A // Alice uses Carol's result from above
0N/A aliceKeyAgree.doPhase(cb, true);
0N/A
0N/A // Bob uses Alice's result from above
0N/A bobKeyAgree.doPhase(ac, true);
0N/A
0N/A // Carol uses Bob's result from above
0N/A carolKeyAgree.doPhase(ba, true);
0N/A
0N/A
0N/A // Alice, Bob and Carol compute their secrets
0N/A byte[] aliceSharedSecret = aliceKeyAgree.generateSecret();
0N/A int aliceLen = aliceSharedSecret.length;
0N/A System.out.println("Alice secret: " + toHexString(aliceSharedSecret));
0N/A
0N/A byte[] bobSharedSecret = bobKeyAgree.generateSecret();
0N/A int bobLen = bobSharedSecret.length;
0N/A System.out.println("Bob secret: " + toHexString(bobSharedSecret));
0N/A
0N/A byte[] carolSharedSecret = carolKeyAgree.generateSecret();
0N/A int carolLen = carolSharedSecret.length;
0N/A System.out.println("Carol secret: " + toHexString(carolSharedSecret));
0N/A
0N/A
0N/A // Compare Alice and Bob
0N/A if (aliceLen != bobLen) {
0N/A throw new Exception("Alice and Bob have different lengths");
0N/A }
0N/A for (int i=0; i<aliceLen; i++) {
0N/A if (aliceSharedSecret[i] != bobSharedSecret[i]) {
0N/A throw new Exception("Alice and Bob differ");
0N/A }
0N/A }
0N/A System.err.println("Alice and Bob are the same");
0N/A
0N/A // Compare Bob and Carol
0N/A if (bobLen != carolLen) {
0N/A throw new Exception("Bob and Carol have different lengths");
0N/A }
0N/A for (int i=0; i<bobLen; i++) {
0N/A if (bobSharedSecret[i] != carolSharedSecret[i]) {
0N/A throw new Exception("Bob and Carol differ");
0N/A }
0N/A }
0N/A System.err.println("Bob and Carol are the same");
0N/A }
0N/A
0N/A
0N/A /*
0N/A * Converts a byte to hex digit and writes to the supplied buffer
0N/A */
0N/A private void byte2hex(byte b, StringBuffer buf) {
0N/A char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
0N/A '9', 'A', 'B', 'C', 'D', 'E', 'F' };
0N/A int high = ((b & 0xf0) >> 4);
0N/A int low = (b & 0x0f);
0N/A buf.append(hexChars[high]);
0N/A buf.append(hexChars[low]);
0N/A }
0N/A
0N/A /*
0N/A * Converts a byte array to hex string
0N/A */
0N/A private String toHexString(byte[] block) {
0N/A StringBuffer buf = new StringBuffer();
0N/A
0N/A int len = block.length;
0N/A
0N/A for (int i = 0; i < len; i++) {
0N/A byte2hex(block[i], buf);
0N/A if (i < len-1) {
0N/A buf.append(":");
0N/A }
0N/A }
0N/A return buf.toString();
0N/A }
0N/A
0N/A /*
0N/A * Prints the usage of this test.
0N/A */
0N/A private void usage() {
0N/A System.err.print("DHKeyAgreement usage: ");
0N/A System.err.println("[-gen]");
0N/A }
0N/A
0N/A // The 1024 bit Diffie-Hellman modulus values used by SKIP
0N/A private static final byte skip1024ModulusBytes[] = {
0N/A (byte)0xF4, (byte)0x88, (byte)0xFD, (byte)0x58,
0N/A (byte)0x4E, (byte)0x49, (byte)0xDB, (byte)0xCD,
0N/A (byte)0x20, (byte)0xB4, (byte)0x9D, (byte)0xE4,
0N/A (byte)0x91, (byte)0x07, (byte)0x36, (byte)0x6B,
0N/A (byte)0x33, (byte)0x6C, (byte)0x38, (byte)0x0D,
0N/A (byte)0x45, (byte)0x1D, (byte)0x0F, (byte)0x7C,
0N/A (byte)0x88, (byte)0xB3, (byte)0x1C, (byte)0x7C,
0N/A (byte)0x5B, (byte)0x2D, (byte)0x8E, (byte)0xF6,
0N/A (byte)0xF3, (byte)0xC9, (byte)0x23, (byte)0xC0,
0N/A (byte)0x43, (byte)0xF0, (byte)0xA5, (byte)0x5B,
0N/A (byte)0x18, (byte)0x8D, (byte)0x8E, (byte)0xBB,
0N/A (byte)0x55, (byte)0x8C, (byte)0xB8, (byte)0x5D,
0N/A (byte)0x38, (byte)0xD3, (byte)0x34, (byte)0xFD,
0N/A (byte)0x7C, (byte)0x17, (byte)0x57, (byte)0x43,
0N/A (byte)0xA3, (byte)0x1D, (byte)0x18, (byte)0x6C,
0N/A (byte)0xDE, (byte)0x33, (byte)0x21, (byte)0x2C,
0N/A (byte)0xB5, (byte)0x2A, (byte)0xFF, (byte)0x3C,
0N/A (byte)0xE1, (byte)0xB1, (byte)0x29, (byte)0x40,
0N/A (byte)0x18, (byte)0x11, (byte)0x8D, (byte)0x7C,
0N/A (byte)0x84, (byte)0xA7, (byte)0x0A, (byte)0x72,
0N/A (byte)0xD6, (byte)0x86, (byte)0xC4, (byte)0x03,
0N/A (byte)0x19, (byte)0xC8, (byte)0x07, (byte)0x29,
0N/A (byte)0x7A, (byte)0xCA, (byte)0x95, (byte)0x0C,
0N/A (byte)0xD9, (byte)0x96, (byte)0x9F, (byte)0xAB,
0N/A (byte)0xD0, (byte)0x0A, (byte)0x50, (byte)0x9B,
0N/A (byte)0x02, (byte)0x46, (byte)0xD3, (byte)0x08,
0N/A (byte)0x3D, (byte)0x66, (byte)0xA4, (byte)0x5D,
0N/A (byte)0x41, (byte)0x9F, (byte)0x9C, (byte)0x7C,
0N/A (byte)0xBD, (byte)0x89, (byte)0x4B, (byte)0x22,
0N/A (byte)0x19, (byte)0x26, (byte)0xBA, (byte)0xAB,
0N/A (byte)0xA2, (byte)0x5E, (byte)0xC3, (byte)0x55,
0N/A (byte)0xE9, (byte)0x2F, (byte)0x78, (byte)0xC7
0N/A };
0N/A
0N/A // The SKIP 1024 bit modulus
0N/A private static final BigInteger skip1024Modulus
0N/A = new BigInteger(1, skip1024ModulusBytes);
0N/A
0N/A // The base used with the SKIP 1024 bit modulus
0N/A private static final BigInteger skip1024Base = BigInteger.valueOf(2);
0N/A}