CBC模式(通过偏移值进行加密,更具安全性)
一、VUE:
1、安装
npm install crypto-js
2、编写公用js(在common文件夹下创建一个crypto.js)
注意:key最少要有16个字符,iv最少6个字符,否则解密返回结果为空。
javascript
import CryptoJS from 'crypto-js'
const KEY = CryptoJS.enc.Utf8.parse('0123456789123456')
const IV = CryptoJS.enc.Utf8.parse('0123456789123456')
// 加密函数
export function encryptData(data) {
const encrypted = CryptoJS.AES.encrypt(
data,
KEY,
{
iv: IV,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
}
)
return encrypted.toString()
}
// 解密函数
export function decryptData(data) {
const decrypted = CryptoJS.AES.decrypt(
data,
KEY,
{
iv: IV,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
}
)
return CryptoJS.enc.Utf8.stringify(decrypted)
}
export default {
encryptData,
decryptData
}
3、引入js使用
javascript
<script>
// 引入js
import { encryptData, decryptData } from '@/common/crypto.js'
export default {
data() {
return {},
},
created() {
// 调用方法
const password = encryptData('123456777')
console.log(password, "加密");
console.log(decryptData(password),'解密')
},
methods: {
},
};
</script>
二、Java:
1、导入
javascript
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.60</version>
</dependency>
2、新建工具类
javascript
package com.nview.utils.aes;
import org.apache.commons.codec.binary.Base64;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
/**
* AES加密解密
*/
public class AesEncryptUtil {
/***
* key和iv值可以随机生成
*/
private static String KEY = "0123456789123456";
private static String IV = "0123456789123456";
/***
* 加密
* @param data 要加密的数据
* @return encrypt
*/
public static String encrypt(String data){
return encrypt(data, KEY, IV);
}
/***
* param data 需要解密的数据
* 调用desEncrypt()方法
*/
public static String desEncrypt(String data){
return desEncrypt(data, KEY, IV);
}
/**
* 加密方法
* @param data 要加密的数据
* @param key 加密key
* @param iv 加密iv
* @return 加密的结果
*/
private static String encrypt(String data, String key, String iv){
try {
//"算法/模式/补码方式"NoPadding PkcsPadding
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
int blockSize = cipher.getBlockSize();
byte[] dataBytes = data.getBytes();
int plaintextLength = dataBytes.length;
if (plaintextLength % blockSize != 0) {
plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
}
byte[] plaintext = new byte[plaintextLength];
System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);
SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
byte[] encrypted = cipher.doFinal(plaintext);
return new Base64().encodeToString(encrypted);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 解密方法
* @param data 要解密的数据
* @param key 解密key
* @param iv 解密iv
* @return 解密的结果
*/
private static String desEncrypt(String data, String key, String iv){
try {
byte[] encrypted1 = new Base64().decode(data);
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "AES");
IvParameterSpec ivSpec = new IvParameterSpec(iv.getBytes());
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
byte[] original = cipher.doFinal(encrypted1);
return new String(original).trim();
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}