Encrypt 加密练习

public class Encrypt {    public static void main(String[] args) {        //base64编码/解码        String string="hello word";        String base64= Base64.encodeToString(string.getBytes());//加密        System.out.println(base64);        String string2=Base64.decodeToString(base64);//解密        System.out.println(string2);        Assert.assertEquals(string,string2);        //16进制编码/解码        String str="hello word";        String base16= Hex.encodeToString(str.getBytes());        System.out.println(base16);        String str2=new String(Hex.decode(base16.getBytes()));        System.out.println(str2);        Assert.assertEquals(str,str2);        //散列算法加密        String saltstr="hello word";        String salt="55555";        String md5=new Md5Hash(saltstr,salt).toString();        System.out.println(md5);        //散列两次        String md52=new Md5Hash(saltstr,salt,2).toString();        System.out.println(md52);        //shiro simpleHash        String shirostr="hello word";        String salt2="55555";        String simpltHash=new SimpleHash("SHA-1",shirostr,salt2).toString();        System.out.println(simpltHash);        //shiro 提供的DefaulthashService        DefaultHashService hashService=new DefaultHashService();        hashService.setHashAlgorithmName("SHA-521");//设置加密方式        hashService.setPrivateSalt(new SimpleByteSource("555555"));//设置私有盐        hashService.setGeneratePublicSalt(true);//生成公盐 默认false        hashService.setRandomNumberGenerator(new SecureRandomNumberGenerator());//生成公盐        hashService.setHashIterations(1);//设置散列迭代次数        HashRequest request=new HashRequest.Builder()                .setAlgorithmName("MD5")                .setSource(ByteSource.Util.bytes("hello word"))                .setSalt(ByteSource.Util.bytes("55555"))                .setIterations(2).build();        String hex=hashService.computeHash(request).toHex();        System.out.println(hex);        //AES算法        AesCipherService aesCipherService=new AesCipherService();        aesCipherService.setKeySize(128);        //生成key        Key key=aesCipherService.generateNewKey();        String text="hello word";        //加密        String encryptText=aesCipherService.encrypt(text.getBytes(),key.getEncoded()).toHex();        //解密        String text2=new String(aesCipherService.decrypt(Hex.decode(encryptText),key.getEncoded()).getBytes());        Assert.assertEquals(text,text2);    }