testtripledes.java

对称和非对称加密

package com.dmgc.security.cipher.symmetic.tripledes.test;

import com.dmgc.security.cipher.symmetic.tripledes.*;

/**
 * <p>Title: DMGC SECURITY CIPHER LIB</p>
 * <p>Description: 上海信宁科技有限公司 安全密码库(JAVA version)</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: 上海信宁科技有限公司</p>
 * 用于测试
 * @author 陆荣幸  周渊   潘勇
 * @version 1.0
 */

public class TestTripleDES {
  /**
   * 测试方法
   */
  private void testTripleDESFile() {

    long starttime, endtime;
    String key1 = null;

    System.out.println("测试DES密钥生成");
    starttime = System.currentTimeMillis();
    System.out.println("开始时间 " + starttime);
    //
    TripleDESKeyGenerator k0 = new TripleDESKeyGenerator();
    byte[] key0 = k0.getTripleDESKey();

    try {
      key1 = k0.ByteToHexString(key0);
    }
    catch (InvalidTripleDESKeyException ex) {
      ex.printStackTrace();
    }
    System.out.println("密钥为: ");
    System.out.println(key1);
    //
    endtime = System.currentTimeMillis();
    System.out.println("结束时间 " + endtime);
    System.out.println("总共时间为 " + (endtime - starttime));

    //
    //
    String srcfile = "d:\\test.pdf";
    String desfile = "d:\\test.cipher.pdf";
    String desscrfile = "d:\\test.copy.pdf";

    String desfile2 = "d:\\test.cipher2.pdf";
    String desscrfile2 = "d:\\test.copy2.pdf";
    //
    System.out.println("测试tripleDES加密");
    starttime = System.currentTimeMillis();
    System.out.println("开始时间 " + starttime);
    TripleDESAlgorithm a0 = new TripleDESAlgorithm();
    try {
      a0.Encrypt(srcfile, desfile, key1);
    }
    catch (Exception ex1) {
      ex1.printStackTrace();
    }
    endtime = System.currentTimeMillis();
    System.out.println("结束时间 " + endtime);
    System.out.println("总共时间为 " + (endtime - starttime));
    //
    System.out.println("测试TripleDES解密");
    starttime = System.currentTimeMillis();
    System.out.println("开始时间 " + starttime);

    try {
      a0.Decrypt(desfile, desscrfile, key1);
    }
    catch (Exception ex1) {
      ex1.printStackTrace();
    }
    endtime = System.currentTimeMillis();
    System.out.println("结束时间 " + endtime);
    System.out.println("总共时间为 " + (endtime - starttime));
    //

    ///
    //
    System.out.println("测试概率TripleDES解密");
    starttime = System.currentTimeMillis();
    System.out.println("开始时间 " + starttime);
    TripleDESProbabilityAlgorithm a1 = new TripleDESProbabilityAlgorithm();
    try {
      a1.Encrypt(srcfile, desfile2, key1);
    }
    catch (Exception ex1) {
      ex1.printStackTrace();
    }
    endtime = System.currentTimeMillis();
    System.out.println("结束时间 " + endtime);
    System.out.println("总共时间为 " + (endtime - starttime));
    //
    System.out.println("测试概率TripleDES解密");
    starttime = System.currentTimeMillis();
    System.out.println("开始时间 " + starttime);

    try {
      a1.Decrypt(desfile2, desscrfile2, key1);
    }
    catch (Exception ex1) {
      ex1.printStackTrace();
    }
    endtime = System.currentTimeMillis();
    System.out.println("结束时间 " + endtime);
    System.out.println("总共时间为 " + (endtime - starttime));
    //

  }

  /**
   * 构造函数
   */
  public TestTripleDES() {

    testTripleDESFile();

  }

  /**
   * 测试
   * @param args
   */
  public static void main(String[] args) {
    TestTripleDES testTripleDES1 = new TestTripleDES();
  }

}