【AES】 前后端解决方案
1、前言
前端引用crypto-js-4.2.0 js，后端采用springboot的默认加密库
2、前端
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<title>AES</title>
</head>
<h1>AES</h1>
<body></body>
<script src="../script/jq/jquery-2.1.1.min.js"></script>
<script src="./crypto-js-4.2.0/crypto-js.js"></script>
<script>
$(function () {
let obj = {name: "张三"};
let str1 = JSON.stringify(obj);
str1 = "张三123";
let cc = aesEncrypt(str1);
console.log("===aesEncrypt ", cc);
let cc2 = aesDecrypt(cc);
console.log("===aesDecrypt ", cc2);
});
function aesEncrypt(plaintext) {
try {
const ciphertext = 'qZief4Y7nr5O2yK5cQxf9z1C5S7g16AP9fNHrHCeNBM='; // 要解密的密文
const key = 'FffrwWL=2=f!yV5Z'; // 密钥
const keyBytes = CryptoJS.enc.Utf8.parse(key);
const encrypted = CryptoJS.AES.encrypt(
CryptoJS.enc.Utf8.parse(plaintext), keyBytes, {
mode: CryptoJS.mode.ECB, //aes加密模式EcB 这个参数要前后端至使用统一的加密模式
padding: CryptoJS.pad.Pkcs7 //使用Pkcs7的方式填充
}
);
const hexStr = CryptoJS.enc.Hex.parse(encrypted.ciphertext.toString());
return CryptoJS.enc.Base64.stringify(hexStr);
} catch (e) {
console.log("===aesEncrypt ", e);
}
return plaintext;
}
function aesDecrypt(secrecyStr) {
try {
const key = 'FffrwWL=2=f!yV5Z'; // 密钥
const keyBytes = CryptoJS.enc.Utf8.parse(key);
const decryptedBytes = CryptoJS.AES.decrypt(secrecyStr, keyBytes, {
mode: CryptoJS.mode.ECB,// 设置成与后端一致的加解密模式
padding: CryptoJS.pad.Pkcs7// 设置成与后端一致的填充方式
});
const decryptedText = decryptedBytes.toString(CryptoJS.enc.Utf8);
return decryptedText;
} catch (e) {
return secrecyStr;
}
}
</script>
</html>
3、java
package org.jeecg.common.util.security;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.Key;
import java.util.Base64;
public class AesUtils {
private static final String ALGORITHM = "AES/ECB/PKCS5Padding";
private static final String key = "FffrwWL=2=f!yV5Z";
public static void main(String[] args) throws Exception {
String aaa = "张三123";
System.out.printf("====== 加密 === 明文 [%s] 密文 [%s] \n", aaa, encrypt(aaa));
String bbb = "aRCbHShtrpNWJnNg25W69g==";
System.out.printf("====== 解密 === 密文 [%s] 明文 [%s] \n", bbb, decrypt(bbb));
}
public static String encrypt(String data) throws Exception {
Key aesKey = new SecretKeySpec(key.getBytes(), "AES");
Cipher cipher = Cipher.getInstance(ALGORITHM);
cipher.init(Cipher.ENCRYPT_MODE, aesKey);
byte[] encrypted = cipher.doFinal(data.getBytes(StandardCharsets.UTF_8));
return Base64.getEncoder().encodeToString(encrypted);
}
public static String decrypt(String encryptedData) throws Exception {
Key aesKey = new SecretKeySpec(key.getBytes(), "AES");
Cipher cipher = Cipher.getInstance(ALGORITHM);
cipher.init(Cipher.DECRYPT_MODE, aesKey);
byte[] decoded = Base64.getDecoder().decode(encryptedData);
String result = new String(cipher.doFinal(decoded), StandardCharsets.UTF_8);
return result;
}
}
