加密方式
- 對稱加密
- 非對稱加密
- 散列函數 md5 哈希 主要用于驗證
- 數據簽名 （非對稱加密的具體應用）
java安全組成
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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.在代碼里直接添加Security.addProvider(neworg.bouncycastle.jce.provider.BouncyCastleProvider());
jdk提供的相關類
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案例
package com.alan;
import java.util.Base64;
public class Base64Test {
//定義要加密的字符串
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));
}
}
