Java example source code file (RSANoLimit.java)

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Java - Java tags/keywords

biginteger, cipher, crypto, ecb\/nopadding, exception, invalidkeyexception, keyfactory, math, modulus4096, one, provider, pub4096, rsanolimit, rsapublickey, rsapublickeyspec, security, string, util

The RSANoLimit.java Java example source code

/*
 * Copyright (c) 2005, 2007, 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 6353783
 * @summary Ensure that the 2048 bit RSA keysize limit has been
 * lifted.
 *
 * @author Valerie Peng
 */

import java.io.*;
import java.util.*;
import java.math.BigInteger;

import java.security.*;
import java.security.spec.RSAPublicKeySpec;
import java.security.interfaces.RSAPublicKey;

import javax.crypto.*;
import javax.crypto.spec.*;

public class RSANoLimit {
    private static final byte[] MODULUS4096 = {
(byte)0x70, (byte)0x80, (byte)0x7C, (byte)0x77, (byte)0x16, (byte)0xD0,
(byte)0x11, (byte)0xF7, (byte)0xA1, (byte)0xAE, (byte)0x3D, (byte)0xEC,
(byte)0x75, (byte)0xC7, (byte)0xC0, (byte)0x65, (byte)0x8F, (byte)0x0D,
(byte)0x16, (byte)0x80, (byte)0xDE, (byte)0x44, (byte)0xB8, (byte)0x32,
(byte)0xA5, (byte)0x33, (byte)0xA1, (byte)0x6A, (byte)0x21, (byte)0xF1,
(byte)0x84, (byte)0xFF, (byte)0xD9, (byte)0x2B, (byte)0x24, (byte)0x53,
(byte)0x6B, (byte)0x23, (byte)0x55, (byte)0xA9, (byte)0xB4, (byte)0x05,
(byte)0x93, (byte)0x5A, (byte)0x0E, (byte)0xA5, (byte)0x51, (byte)0xBE,
(byte)0x50, (byte)0x90, (byte)0xBD, (byte)0x88, (byte)0x07, (byte)0x6E,
(byte)0x07, (byte)0x2E, (byte)0xFD, (byte)0xCE, (byte)0x32, (byte)0x0C,
(byte)0x48, (byte)0x03, (byte)0x26, (byte)0x95, (byte)0x64, (byte)0x92,
(byte)0x8D, (byte)0xB8, (byte)0x09, (byte)0x31, (byte)0xFB, (byte)0x80,
(byte)0x32, (byte)0x20, (byte)0x38, (byte)0x72, (byte)0x7A, (byte)0x5F,
(byte)0xF9, (byte)0x5A, (byte)0x73, (byte)0x84, (byte)0x5A, (byte)0xDA,
(byte)0x4C, (byte)0xB2, (byte)0x6C, (byte)0x9C, (byte)0x18, (byte)0xA2,
(byte)0xC8, (byte)0xC5, (byte)0x87, (byte)0x62, (byte)0xA1, (byte)0x59,
(byte)0xEA, (byte)0x04, (byte)0xD8, (byte)0xB7, (byte)0xE4, (byte)0xB6,
(byte)0xA1, (byte)0xD1, (byte)0xDA, (byte)0xB8, (byte)0x61, (byte)0x24,
(byte)0xC6, (byte)0xD4, (byte)0x20, (byte)0xBC, (byte)0x01, (byte)0x32,
(byte)0xAB, (byte)0xDF, (byte)0x30, (byte)0x12, (byte)0xE1, (byte)0xB0,
(byte)0x80, (byte)0xCB, (byte)0x0A, (byte)0x25, (byte)0xAB, (byte)0xC6,
(byte)0xEB, (byte)0xE2, (byte)0x3B, (byte)0x77, (byte)0xAD, (byte)0x90,
(byte)0x16, (byte)0xC8, (byte)0xCC, (byte)0xF9, (byte)0x94, (byte)0xBB,
(byte)0xF0, (byte)0xE7, (byte)0x77, (byte)0xA9, (byte)0x4E, (byte)0x7D,
(byte)0xFC, (byte)0x76, (byte)0x11, (byte)0xA1, (byte)0xE8, (byte)0x22,
(byte)0xD1, (byte)0xC5, (byte)0xAA, (byte)0x51, (byte)0x2B, (byte)0xBD,
(byte)0x0B, (byte)0x2E, (byte)0x3A, (byte)0x97, (byte)0xAC, (byte)0x19,
(byte)0x4B, (byte)0xA2, (byte)0x01, (byte)0x89, (byte)0x1A, (byte)0x9E,
(byte)0x2C, (byte)0x0C, (byte)0x7E, (byte)0x83, (byte)0xAD, (byte)0xCB,
(byte)0xED, (byte)0x5B, (byte)0x67, (byte)0x67, (byte)0x9E, (byte)0x85,
(byte)0x1E, (byte)0x68, (byte)0xB6, (byte)0x5D, (byte)0xB9, (byte)0xD6,
(byte)0xBD, (byte)0x80, (byte)0x92, (byte)0x7A, (byte)0x54, (byte)0xB3,
(byte)0x5F, (byte)0x2E, (byte)0x8C, (byte)0x53, (byte)0x83, (byte)0xBD,
(byte)0xF9, (byte)0x0D, (byte)0x65, (byte)0x0B, (byte)0xCD, (byte)0x22,
(byte)0x21, (byte)0x51, (byte)0xB3, (byte)0x8F, (byte)0x19, (byte)0x53,
(byte)0x6F, (byte)0x62, (byte)0x88, (byte)0x09, (byte)0xB0, (byte)0x8F,
(byte)0xB5, (byte)0xDA, (byte)0x6E, (byte)0x2A, (byte)0x2F, (byte)0xF9,
(byte)0xA6, (byte)0x65, (byte)0x59, (byte)0x17, (byte)0xEC, (byte)0x05,
(byte)0x6A, (byte)0xA4, (byte)0xC6, (byte)0x21, (byte)0x3F, (byte)0x81,
(byte)0xB9, (byte)0xB0, (byte)0x72, (byte)0xBB, (byte)0x84, (byte)0x79,
(byte)0xEC, (byte)0x3E, (byte)0xA5, (byte)0x25, (byte)0x37, (byte)0x9D,
(byte)0xC3, (byte)0x2E, (byte)0x79, (byte)0x69, (byte)0xE6, (byte)0x80,
(byte)0x5E, (byte)0x1E, (byte)0x03, (byte)0x8D, (byte)0xD9, (byte)0x62,
(byte)0xCC, (byte)0x6C, (byte)0x7C, (byte)0x27, (byte)0x52, (byte)0xE5,
(byte)0xC2, (byte)0x24, (byte)0xBF, (byte)0x95, (byte)0xCC, (byte)0x2E,
(byte)0xFA, (byte)0x9C, (byte)0x88, (byte)0xAB, (byte)0x48, (byte)0x43,
(byte)0xDB, (byte)0x36, (byte)0xFD, (byte)0x41, (byte)0x3C, (byte)0x71,
(byte)0xE4, (byte)0x5C, (byte)0x30, (byte)0xE0, (byte)0x00, (byte)0x24,
(byte)0x18, (byte)0xC2, (byte)0xD1, (byte)0x11, (byte)0x79, (byte)0xCE,
(byte)0xD8, (byte)0x19, (byte)0xE5, (byte)0xA6, (byte)0xD3, (byte)0xFE,
(byte)0x79, (byte)0x5F, (byte)0xA8, (byte)0xC3, (byte)0x92, (byte)0xBB,
(byte)0x63, (byte)0xD2, (byte)0x3D, (byte)0x17, (byte)0x6D, (byte)0xFB,
(byte)0x39, (byte)0xD2, (byte)0x32, (byte)0x5F, (byte)0xE1, (byte)0x54,
(byte)0xD6, (byte)0x72, (byte)0xDB, (byte)0xA8, (byte)0xA3, (byte)0xFE,
(byte)0x49, (byte)0x98, (byte)0xAA, (byte)0x55, (byte)0x67, (byte)0x1C,
(byte)0xAB, (byte)0x83, (byte)0xA2, (byte)0x0F, (byte)0x03, (byte)0x52,
(byte)0x3D, (byte)0x15, (byte)0xAF, (byte)0xDD, (byte)0x8A, (byte)0xAB,
(byte)0x35, (byte)0x82, (byte)0xEF, (byte)0x6D, (byte)0xBD, (byte)0x8E,
(byte)0xF3, (byte)0xB5, (byte)0x5E, (byte)0xD9, (byte)0xC9, (byte)0x45,
(byte)0x99, (byte)0x46, (byte)0x4A, (byte)0xA5, (byte)0x28, (byte)0xAF,
(byte)0x4E, (byte)0x6B, (byte)0xDE, (byte)0x9F, (byte)0xD7, (byte)0x20,
(byte)0x7D, (byte)0x81, (byte)0xDB, (byte)0x34, (byte)0x25, (byte)0xDF,
(byte)0x08, (byte)0xCA, (byte)0x06, (byte)0x77, (byte)0xC4, (byte)0xBC,
(byte)0x69, (byte)0x4D, (byte)0x93, (byte)0x05, (byte)0x9C, (byte)0x8B,
(byte)0xDB, (byte)0x84, (byte)0xB0, (byte)0xE7, (byte)0xBA, (byte)0xD2,
(byte)0xEA, (byte)0x8D, (byte)0x64, (byte)0xF6, (byte)0xE3, (byte)0x96,
(byte)0x2F, (byte)0x88, (byte)0x65, (byte)0x92, (byte)0x54, (byte)0x50,
(byte)0xF6, (byte)0x33, (byte)0x15, (byte)0x2A, (byte)0xBF, (byte)0xB0,
(byte)0xD4, (byte)0xD5, (byte)0x0C, (byte)0xCA, (byte)0x78, (byte)0x95,
(byte)0xF4, (byte)0xC1, (byte)0x11, (byte)0xA7, (byte)0x52, (byte)0xA1,
(byte)0xC9, (byte)0x49, (byte)0x63, (byte)0x41, (byte)0xD3, (byte)0x3E,
(byte)0xA0, (byte)0xBE, (byte)0x7F, (byte)0x2F, (byte)0x17, (byte)0x2E,
(byte)0xFD, (byte)0xA1, (byte)0x55, (byte)0x95, (byte)0x7F, (byte)0x24,
(byte)0x90, (byte)0x68, (byte)0x4C, (byte)0x05, (byte)0xFD, (byte)0x52,
(byte)0x9B, (byte)0x04, (byte)0x59, (byte)0xA0, (byte)0xEF, (byte)0x69,
(byte)0x65, (byte)0x68, (byte)0x58, (byte)0x0F, (byte)0xF5, (byte)0x04,
(byte)0x0E, (byte)0x23, (byte)0xEE, (byte)0xFA, (byte)0x04, (byte)0x80,
(byte)0x8C, (byte)0x24, (byte)0xE5, (byte)0xB0, (byte)0x2B, (byte)0xA6,
(byte)0x35, (byte)0x60, (byte)0xFA, (byte)0x08, (byte)0xD4, (byte)0x13,
(byte)0x3E, (byte)0xE0, (byte)0xB0, (byte)0x63, (byte)0x1D, (byte)0xDB,
(byte)0x1F, (byte)0x8C, (byte)0x2F, (byte)0xD0, (byte)0x47, (byte)0x8F,
(byte)0x73, (byte)0x91, (byte)0xD7, (byte)0xDC, (byte)0x8A, (byte)0xE8,
(byte)0x2D, (byte)0xF2, (byte)0x22, (byte)0x9C, (byte)0xEE, (byte)0x23,
(byte)0xFA, (byte)0x4C, (byte)0xC1, (byte)0x86, (byte)0xE0, (byte)0x15,
(byte)0xC7, (byte)0x52, (byte)0xFE, (byte)0x81, (byte)0xD6, (byte)0x27,
(byte)0x6C, (byte)0x4F
    };
    private static final byte[] PUB4096 = {
        (byte)0x01, (byte)0x00, (byte)0x01
    };
    public static void main(String[] args) throws Exception {
        boolean result = true;
        Provider p = Security.getProvider("SunJCE");
        System.out.println("Testing provider " + p.getName() + "...");
        // Test#1: make sure Cipher.getMaxAllowedKeyLength returns the
        // correct value
        if (Cipher.getMaxAllowedKeyLength("RSA") != Integer.MAX_VALUE) {
            result = false;
            System.out.println("Test#1 failed");
        }
        // Test#2: try initializing RSA cipher with 4096 key
        String algo = "RSA";
        RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec
            (new BigInteger(MODULUS4096), new BigInteger(PUB4096));
        KeyFactory kf = KeyFactory.getInstance(algo);
        RSAPublicKey pubKey = (RSAPublicKey) kf.generatePublic(pubKeySpec);

        Cipher c = Cipher.getInstance(algo + "/ECB/NoPadding", p);
        try {
            c.init(Cipher.ENCRYPT_MODE, pubKey);
        } catch (InvalidKeyException ike) {
            result = false;
            System.out.println("Test#2 failed");
            ike.printStackTrace();
        }

        if (result) {
            System.out.println("All tests passed!");
        } else {
            throw new Exception("One or more test failed!");
        }
    }
}