Java实现Base64加密

加密方式

• 对称加密
• 非对称加密
• 散列函数 md5 哈希 主要用于验证
• 数据签名 （非对称加密的具体应用）

java安全组成

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摘要：1.修改JDK的配置文件:%JDK_HOME%jrelibsecurityjava.security//加上security.provider.10=org.bouncycastle.jce.provider.BouncyCastleProvider 2.在代码里直接添加Security.addProvider(neworg.bouncycastle.jce.provider.BouncyCastleProvider());
jdk提供的相关类

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案例

package com.alan;

import java.util.Base64;

public class Base64Test {

    //定义要加密的字符串
    private static String src = "imooc security base64";

    public static void main(String[] args) {
        bouncyCastleBase64();

    }


    //jdk方式加密
    public static void jdkBase64(){

        Base64.Encoder encoder = Base64.getEncoder();
        String s = encoder.encodeToString(src.getBytes());
        System.out.println("加密："+s);
        Base64.Decoder decoder = Base64.getDecoder();
        System.out.println("解密"+ new String(decoder.decode(s)));
    }

    //commons codec
    public static void commonsCodesBase64(){
        byte[] bytes = org.apache.commons.codec.binary.Base64.encodeBase64(src.getBytes());
        System.out.println("加密："+new String(bytes));
        byte[] bytes1 = org.apache.commons.codec.binary.Base64.decodeBase64(bytes);
        System.out.println("解密:"+ new String(bytes1));

    }

    //bouncyCastleBase64
    public static void bouncyCastleBase64(){
        byte[] encode = org.bouncycastle.util.encoders.Base64.encode(src.getBytes());
        System.out.println("加密1："+new String(encode));
        byte[] decode = org.bouncycastle.util.encoders.Base64.decode(encode);
        System.out.println("解密1:"+ new String(decode));


    }



}