//说明： // 1.如果加密解密涉及到前端和后端，则这里的key要保持和后端的key一致 // 2.AES的算法模式有好几种（ECB,CBC,CFB,OFB），所以也要和后端保持一致 // 3.AES的补码方式有两种（PKS5，PKS7），所以也要和后端保持一致 // 4.AES的密钥长度有三种（128,192,256，默认是128），所以也要和后端保持一致 // 5.AES的加密结果编码方式有两种（base64和十六进制），具体怎么选择由自己定，但是加密和解密的编码方式要统////一
// 后端node js代码：
const express
=
require(
‘express‘);
//调用模块
const app
=
express();
const server
= app
.
listen(
3002,
function(){console
.
log(
‘服务启动成功！‘);});
const crypto
=
require(
‘crypto‘); app
.
all(
‘*‘,
function(
req,
res,
next) {
res
.
header(
“Access-Control-Allow-Origin”,
“*”);
res
.
header(
“Access-Control-Allow-Headers”,
“X-Requested-With”);
res
.
header(
“Access-Control-Allow-Methods”,
“PUT,POST,GET,DELETE,OPTIONS”);
res
.
header(
“X-Powered-By”,
‘ 3.2.1‘)
res
.
header(
“Content-Type”,
“text/plain”);
next(); }); app
.
get(
‘/‘,
function (
req,
res) { console
.
log(
111)
res
.
send(
‘1111‘) });
/**
* AES加密的配置
* 1.密钥
* 2.偏移向量
* 3.算法模式CBC
* 4.补全值
*/
var AES_conf
= { key:
getSecretKey(),
//密钥 iv:
‘1012132405963708‘,
//偏移向量 padding:
‘PKCS7Padding‘
//补全值 需和前端padding保持一致 }
/**
* 读取密钥key
* 更具当前客户端的版本vid、平台platform获取对应的key
*/
function
getSecretKey(){
return
“46cc793c53dc451b”; }
/**
* AES_128_CBC 加密
* 128位
* return base64
*/
function
encryption(
data) {
let key
= AES_conf
.key;
let iv
= AES_conf
.iv;
// let padding = AES_conf.padding;
var cipherChunks
= [];
var cipher
= crypto
.
createCipheriv(
‘aes-128-ECB‘, key,
‘‘); cipher
.
setAutoPadding(
true); cipherChunks
.
push(cipher
.
update(
data,
‘utf8‘,
‘base64‘)); cipherChunks
.
push(cipher
.
final(
‘base64‘));
return cipherChunks
.
join(
‘‘); }
/**
* 解密
* return utf8
*/
function
decryption(
data){
let key
= AES_conf
.key;
let iv
= AES_conf
.iv;
var cipherChunks
= [];
var decipher
= crypto
.
createDecipheriv(
‘aes-128-ECB‘, key,
‘‘); decipher
.
setAutoPadding(
true); cipherChunks
.
push(decipher
.
update(
data,
‘base64‘,
‘utf8‘)); cipherChunks
.
push(decipher
.
final(
‘utf8‘));
return cipherChunks
.
join(
‘‘); };
let
decrypt
=(
data)
=>{
let key
=
‘46cc793c53dc451b‘;
let decipher
= crypto
.
createDecipheriv(
‘aes-128-ecb‘, key,
“”);
const buf1
=
new
Buffer(
data,
“base64”)
.
toString(
‘hex‘);
let decrypted
= decipher
.
update(buf1,
‘hex‘,
‘utf8‘); decrypted
+= decipher
.
final(
‘utf8‘);
return decrypted; };
let
encrypt
= (
data)
=>{
let key
=
‘46cc793c53dc451b‘;
let crypted
=
‘‘;
let cipher
= crypto
.
createCipheriv(
‘aes-128-ecb‘, key,
“”); crypted
= cipher
.
update(
data,
‘utf8‘,
‘binary‘); crypted
+= cipher
.
final(
‘binary‘); crypted
=
new
Buffer(crypted,
‘binary‘)
.
toString(
‘base64‘);
return crypted; }
console
.
log(
encrypt(
‘哈哈‘) ); console
.
log(
encryption(
‘哈哈‘) ); console
.
log(
decrypt(
“1SYQyczGb5L4qmVybCV82g==”) ); console
.
log(
decryption(
“1SYQyczGb5L4qmVybCV82g==”)); 前端代码： <!
DOCTYPE
html> <
html
lang=
“en”> <
head> <
meta
charset=
“UTF-8”> <
meta
name=
“viewport”
content=
“width=device-width, initial-scale=1.0”> <
title>Document</
title> <
script
src=
“https://cdn.bootcss.com/crypto-js/3.3.0/crypto-js.min.js”></
script>
<!– <script src=”https://cdn.bootcss.com/crypto-js/3.3.0/aes.js”></script> –>
</
head> <
body> <
script>
function
encrypt(
word){
var key
= CryptoJS
.enc
.Utf8
.
parse(
“46cc793c53dc451b”);
var srcs
= CryptoJS
.enc
.Utf8
.
parse(
word);
var encrypted
= CryptoJS
.AES
.
encrypt(srcs, key, {
mode: CryptoJS
.mode
.ECB,
padding: CryptoJS
.pad
.Pkcs7 //和后端pkcs7 一致 });
return encrypted
.
toString(); }
function
decrypt(
word){
var key
= CryptoJS
.enc
.Utf8
.
parse(
“46cc793c53dc451b”);
var decrypt
= CryptoJS
.AES
.
decrypt(
word, key, {
mode: CryptoJS
.mode
.ECB,
padding: CryptoJS
.pad
.Pkcs7 });
return CryptoJS
.enc
.Utf8
.
stringify(decrypt)
.
toString(); } console
.
log(
encrypt(
‘哈哈‘) ) console
.
log(
decrypt(
‘1SYQyczGb5L4qmVybCV82g==‘) )
</
script> </
body> </
html>