Javascript前端和JAVA後端對加密庫的處理實例

時間 2019-11-05

標籤 javascript 前端 java 後端加密處理實例欄目 JavaScript 简体版

原文原文鏈接

前端加密

Javascript的加解密有開源的庫，http://www.oschina.net/p/crypto-js/javascript

以下是具體的使用例子html

<!DOCTYPE html>前端

<html lang="zh-cn">java

<head>git

</head>後端

<body>加密

//16位

var pwd="abcd2016_-=00_X_";

function Decrypt(word){

var encryptedHexStr = CryptoJS.enc.Hex.parse(word);

var srcs = CryptoJS.enc.Base64.stringify(encryptedHexStr);

console.log(srcs);

var decrypt = CryptoJS.AES.decrypt(srcs, key, { iv: iv,mode:CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7});

var decryptedStr = decrypt.toString(CryptoJS.enc.Utf8);

return decryptedStr.toString();

}

function Encrypt(word){

var key = CryptoJS.enc.Utf8.parse(pwd);

var iv = CryptoJS.enc.Utf8.parse(pwd);

var srcs = CryptoJS.enc.Utf8.parse(word);

var encrypted = CryptoJS.AES.encrypt(srcs, key, { iv: iv,mode:CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7});

srcs = CryptoJS.enc.Base64.stringify(encrypted.ciphertext);

return srcs ;

}

var mm = Encrypt('DEMO');

console.log(mm)

var jm = Decrypt(mm);

console.log(jm)

</script>

若是使用typescript能夠在這找到其和ts集成的定義文件

https://github.com/DefinitelyTyped/DefinitelyTyped/blob/36d40a63a05b5cb3413737fbdf7c9a2a26f211fd/crypto-js/crypto-js.d.ts

後端的java處理

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import java.util.Arrays;

String pwd = "abcd2016_-=00_X_";
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] raw = pwd.getBytes("utf-8");
SecretKey secretKey = new SecretKeySpec(raw, "AES");
System.out.println("密鑰的長度爲：" + secretKey.getEncoded().length);
Base64 b64 = new Base64();

encrypt = b64.decode(b64.encodeToString("DEMO"));
cipher.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(raw));//使用解密模式初始化密鑰
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("解密後：" + new String(decrypt));