test.java

Java加密组件实现DES、RSA和SHA加密算法 可以直接导入工程使用

package com.gmc.algorithms;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.security.Key;

import com.gmc.crypto.MessageDigester;
import com.gmc.crypto.SymmetryEncrypt;

/**
 * 测试类
 * @author wanna
 *
 */
public class Test
{
	public static void main(String[] args)
	{
		Test t = new Test();
		//t.SHATest();
		//t.DESTest();
		t.RSATest();
	}

	public void SHATest()
	{
		MessageDigester md = new SHATools();
		String str1 = "dsdfwerd";
		String str2 = null;
		byte []b= new byte[0];
		File f = new File("E:\\55.txt");
		try
		{
			System.out.println(md.encrypt(str1, null));
			System.out.println(b.length);
			System.out.println(md.encrypt(b, null));
			System.out.println(md.encrypt(f, null));

			FileInputStream fis = new FileInputStream(f);
			System.out.println(md.encrypt(fis, null));
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
	}
	
	public void DESTest()
	{
		SymmetryEncrypt se = new DesedeTools();
		try
		{
		//对字符串加解密成功
		   String str1 = "165464864";
		   String Mstr1 = se.encrypt(str1, null); 
		   System.out.println(Mstr1);
		   Key k1= se.getKey();
		   System.out.println(se.decrypt(Mstr1.getBytes(), k1));
		
		 //对文件加解密成功
		  File f = new File("F:\\55.txt");
	      File f2 = se.encrypt(f, null);
	      Key k2 = se.getKey();
	      se.decrypt(f2, k2);
	      
	    /*//对数据流加解密成功 
	      InputStream is =new FileInputStream(new File("E:\\55.txt"));
	      File f3 =		se.encrypt(is, null, "E:\\5.dfs");	
	      Key k3 = se.getKey();
	      InputStream is2 = new FileInputStream(f3);
	      se.decrypt(is2, k3, "D:\\5.txt");*/
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	
	public void RSATest()
	{
		RSATools rt = new RSATools();
		try
		{
			/*//对字符串加解密成功
			String str1="sdfsfjpdiwdpdfipw";
			System.out.println(str1);
			
			String mstr1 = rt.encrypt(str1.getBytes(), null);
			System.out.println(mstr1);
			
			Key pubk1 = rt.getPublicKey();
			Key prik1 = rt.getPrivateKey();
			
			String jstr1 = rt.decrypt(mstr1.getBytes(), prik1);
			System.out.println(jstr1);
			
			String str2 = "3616516165";
			System.out.println(str2);
			String mstr2 = rt.encrypt(str2, pubk1);
			System.out.println(mstr2);
			System.out.println(rt.decrypt(mstr2.getBytes(), prik1));
			*/
			
			 //对文件加解密成功 
			/*File f 	= new File("F:\\55.txt");
			System.out.println(f.length());
			File ef = rt.encrypt(f, null);
			Key prik2= rt.getPrivateKey();
			rt.decrypt(ef, prik2);
			*/
			
			//对数据流加解密成功
			InputStream iss = new FileInputStream(new File("F:\\55.txt"));
			File f5 = rt.encrypt(iss, null, "E:\\5.fjm");
			InputStream iss2 = new FileInputStream(f5);
			Key key = rt.getPrivateKey();
			rt.decrypt(iss2,key ,"E:\\5555.txt");
			/*对字符串签名/验证成功
			String str3 ="146849sdfs锟斤拷";
		    System.out.println(str3);
		    
		    String sstr3 =rt.digitalSignature(str3, null);
		    Key pubkey3 = rt.getPublicKey();
		    Key prikey3 = rt.getPrivateKey();
		    System.out.println(sstr3);
		    System.out.println(rt.validateSignature(str3, sstr3, pubkey3));*/
	      /*		
	 		// 对文件签名/验证成功
			File f3 = new File("F:\\55.txt");
			File sf3= rt.digitalSignature(f3, null);
			Key pk3= rt.getPublicKey();
			System.out.println(rt.validateSignature(f3, sf3, pk3));*/
			
			//对数据流签名/验证成功
			/*InputStream is = new FileInputStream(new File("E:\\55.txt"));
			File f4 = rt.digitalSignature(is, null,null);
			Key pk4 = rt.getPublicKey();
			InputStream is2 = new FileInputStream(new File("E:\\55.txt"));
			InputStream sign = new FileInputStream(f4);
			System.out.println(rt.validateSignature(is2,sign,pk4));
			*/
			
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
}