发布于 2018-02-18 10:27:29 | 230 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Node.js主要方法使用说明,程序狗速度看过来!
Node.js 服务器端的JavaScript
Node.js 是一个基于Chrome JavaScript 运行时建立的一个平台, 用来方便地搭建快速的 易于扩展的网络应用· Node.js 借助事件驱动, 非阻塞I/O 模型变得轻量和高效, 非常适合 运行在分布式设备 的 数据密集型 的实时应用
前言
工作中遇到nodejs端通过aes加密,安卓客户端Java解密,同样nodejs也需要解密安卓客户端加密过来的内容,发现两个加密结果不一样,查询资料发现java端需要对密钥再MD5加密一遍,以下是Java与Node.js利用AES加密解密出相同结果的方法,需要的朋友们下面来一起学习学习吧。
JAVA代码如下:
package g.g;
import java.security.MessageDigest;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
public class AesECB {
public static final String DEFAULT_CODING = "utf-8";
/**
* 解密
* @author lmiky
* @date 2014-2-25
* @param encrypted
* @param seed
* @return
* @throws Exception
*/
private static String decrypt(String encrypted, String seed) throws Exception {
byte[] keyb = seed.getBytes(DEFAULT_CODING);
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] thedigest = md.digest(keyb);
SecretKeySpec skey = new SecretKeySpec(thedigest, "AES");
Cipher dcipher = Cipher.getInstance("AES");
dcipher.init(Cipher.DECRYPT_MODE, skey);
byte[] clearbyte = dcipher.doFinal(toByte(encrypted));
return new String(clearbyte);
}
/**
* 加密
* @author lmiky
* @date 2014-2-25
* @param content
* @param key
* @return
* @throws Exception
*/
public static String encrypt(String content, String key) throws Exception {
byte[] input = content.getBytes(DEFAULT_CODING);
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] thedigest = md.digest(key.getBytes(DEFAULT_CODING));
SecretKeySpec skc = new SecretKeySpec(thedigest, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, skc);
byte[] cipherText = new byte[cipher.getOutputSize(input.length)];
int ctLength = cipher.update(input, 0, input.length, cipherText, 0);
ctLength += cipher.doFinal(cipherText, ctLength);
return parseByte2HexStr(cipherText);
}
/**
* 字符串转字节数组
* @author lmiky
* @date 2014-2-25
* @param hexString
* @return
*/
private static byte[] toByte(String hexString) {
int len = hexString.length() / 2;
byte[] result = new byte[len];
for (int i = 0; i < len; i++) {
result[i] = Integer.valueOf(hexString.substring(2 * i, 2 * i + 2), 16).byteValue();
}
return result;
}
/**
* 字节转16进制数组
* @author lmiky
* @date 2014-2-25
* @param buf
* @return
*/
private static String parseByte2HexStr(byte buf[]) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < buf.length; i++) {
String hex = Integer.toHexString(buf[i] & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
sb.append(hex);
}
return sb.toString();
}
public static void main(String[] args) throws Exception {
System.out.println(AesECB.encrypt("fsadfsdafsdafsdafsadfsadfsadf", "1eVRiqy7b9Uv7ZMM"));
System.out.println(AesECB.decrypt("b123e2d9199598c0e3f1999dc9e723387b68e29d2b3a0d59fc7d5946c750c6b4", "1eVRiqy7b9Uv7ZMM"));
}
}
Node.js代码如下:
var crypto = require('crypto');
exports.aes_algorithm = "aes-128-ecb";
exports.aes_secrect = "1eVRiqy7b9Uv7ZMM";
exports.encrypt = function (text) {
var cipher = crypto.createCipher(this.aes_algorithm, this.aes_secrect)
var crypted = cipher.update(text, 'utf8', 'hex')
crypted += cipher.final('hex');
return crypted;
};
exports.decrypt = function (text) {
var decipher = crypto.createDecipher(this.aes_algorithm, this.aes_secrect)
var dec = decipher.update(text, 'hex', 'utf8')
dec += decipher.final('utf8');
return dec;
};
//var hw = this.encrypt("fsadfsdafsdafsdafsadfsadfsadf");
//console.log(hw);
//console.log(this.decrypt(hw));
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流,谢谢大家对PHPERZ的支持。