package com.ruoyi.other.util;
|
|
import org.apache.commons.codec.binary.Base64;
|
|
import javax.crypto.Cipher;
|
|
import javax.crypto.spec.SecretKeySpec;
|
|
|
/**
|
* Created by jhb on 2022-08-03 14:16
|
*/
|
public class AESUtils {
|
public static final String DEFAULT_SECRET_KEY = "kstar_ase_keysfo";
|
/**
|
* 加密
|
* @param sSrc 需要加密的字符串
|
* @param sKey 此处使用AES-128-ECB加密模式，key需要为16位。
|
* @return
|
* @throws Exception
|
*/
|
public static String Encrypt(String sSrc, String sKey) throws Exception {
|
sKey = DEFAULT_SECRET_KEY;
|
|
// 判断Key是否为16位
|
if (sKey.length() != 16) {
|
System.out.print("Key长度不是16位");
|
return null;
|
}
|
byte[] raw = sKey.getBytes("utf-8");
|
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
|
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式"
|
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
|
byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
|
|
return new Base64().encodeToString(encrypted);//此处使用BASE64做转码功能，同时能起到2次加密的作用。
|
}
|
|
/**
|
* 解密
|
* @param sSrc 需要解密的字符串
|
* @param sKey 此处使用AES-128-ECB加密模式，key需要为16位。
|
* @return
|
* @throws Exception
|
*/
|
public static String Decrypt(String sSrc, String sKey) throws Exception {
|
sKey = DEFAULT_SECRET_KEY;
|
try {
|
// 判断Key是否正确
|
if (sKey == null) {
|
System.out.print("Key为空null");
|
return null;
|
}
|
// 判断Key是否为16位
|
if (sKey.length() != 16) {
|
System.out.print("Key长度不是16位");
|
return null;
|
}
|
byte[] raw = sKey.getBytes("utf-8");
|
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
|
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
|
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
|
byte[] encrypted1 = new Base64().decode(sSrc);//先用base64解密
|
try {
|
byte[] original = cipher.doFinal(encrypted1);
|
String originalString = new String(original,"utf-8");
|
return originalString;
|
} catch (Exception e) {
|
System.out.println(e.toString());
|
return null;
|
}
|
} catch (Exception ex) {
|
System.out.println(ex.toString());
|
return null;
|
}
|
}
|
|
public static void main(String[] args) throws Exception {
|
/*
|
* 此处使用AES-128-ECB加密模式，key需要为16位。
|
*/
|
String cKey = "kstar_ase_keysfo";
|
// 需要加密的字串
|
String cSrc = "huandaoguangfu";
|
System.out.println(cSrc);
|
// 加密
|
String enString = AESUtils.Encrypt(cSrc, cKey);
|
System.out.println("加密后的字串是：" + enString);
|
|
// 解密
|
String DeString = AESUtils.Decrypt(enString, cKey);
|
System.out.println("解密后的字串是：" + DeString);
|
}
|
|
}
|
