nodejs和java密钥的生成
发布于 4个月前 作者 hf201429 561 次浏览 来自 问答

Java代码：

public String encryption(String str)throws Exception{
        try {
            String KEY = "123456789";
            byte[] enCriptSHA1String = enCriptSHA1(str);//SHA-1   
            String base64String = enBase64(enCriptSHA1String);//
            System.out.println("1    "+base64String);
            System.out.println("1.5    "+(str + "_" + base64String));
            byte[] enCrptString = enCrpt((str + "_" + base64String).getBytes(), KEY.getBytes());//DESede 
            String base64StringRe = enBase64(enCrptString);
            System.out.println("2    "+base64StringRe);
            str=URLEncoder.encode(base64StringRe);
            System.out.println("3    "+str);
        } catch (Exception e) {
            throw e;
        }
        return str;
    }
    public byte[] enCriptSHA1(String authenticator){
        //加密的方式
        final String Algorithm = "SHA-1";
        //实例MessageDigest对象
        MessageDigest md=null;
        byte[] encode=null;
        //加密数据转换成字节
        byte[] bt=authenticator.getBytes();
        try {
            //SHA-1加密
            md=MessageDigest.getInstance(Algorithm);
            md.update(bt);
            //二行制到字符串的转变
            encode=md.digest();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return encode;
    }
    public byte[] enCrpt(byte[] reqStr ,byte[] enkey){
        //加密的方式
        final String Algorithm = "DESede";
        //加密后的数据
        byte[] encoded = null;
        //根据密钥加密对象
        Cipher cipher = null;
        //得到密钥
        SecretKey secretKey = null;
        try {
            //得到密钥
            secretKey = getSecretKey(enkey,Algorithm);
            //加密
            cipher = Cipher.getInstance(Algorithm);
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
            //得到解加密后的数据
            encoded = cipher.doFinal(reqStr);
        } catch (Exception e) {
            
        }
        return encoded;
    }

nodejs 代码：

function aesEncrypt(data) {
         var cipher = crypto.createHash('sha1');
         var encodeC = cipher.update(data).digest().toString('base64');
         var ciphertwo = crypto.createCipher('des-ede',new Buffer('12345678'),0);
         var endate = data+'_'+encodeC;
         var en = ciphertwo.update(new Buffer(endate),'binary','base64')+ciphertwo.final('base64');
         console.info("en: "+en+"   ");
         return en;
    };

以上分别是我java和nodejs加密写法，为什么得出的结果不一样呢请大神指导下，看看哪里有错。

7 回复

看看能不能帮到你 http://blog.csdn.net/linminqin/article/details/19972751

谢谢，这个我看过，好像不行。。。

你的 getSecretKey 方法在哪里？ 贴了个小片段，想试验一下都不行。。。。

我也在这里卡了一段时间，后来各种尝试终于解决了：(不太懂这个网站应该怎么格式代码，代码贴的比较丑，见谅了;)

AESCrypt.js

var crypto = require('crypto');

var AESCrypt = {};

AESCrypt.decrypt = function(cryptkey, iv, encryptdata) {
    encryptdata = new Buffer(encryptdata, 'base64').toString('binary');
    var decipher = crypto.createDecipheriv('aes-128-cbc', cryptkey, iv);
    var decoded  = decipher.update(encryptdata, 'binary', 'utf8');

    decoded += decipher.final('utf8');
    return decoded;
}

AESCrypt.encrypt = function(cryptkey, iv, cleardata) {
    var encipher = crypto.createCipheriv('aes-128-cbc', cryptkey, iv);
    var encryptdata  =   encipher.update(cleardata, 'utf8', 'binary');
    encryptdata += encipher.final('binary');
    var encode_encryptdata = new Buffer(encryptdata, 'binary').toString('base64');
    return encode_encryptdata;
}

module.exports = AESCrypt;

AESCryptTest.js

var AESCrypt = require('./AESCrypt');
var cryptkey   = new Buffer('1234567890123456','utf-8'),
iv         = new Buffer('00000000000000000000000000000000','hex').toString('utf-8');

var obj = {
    a:'1',
    b:'2'
}

var objStr = JSON.stringify(obj);
var encStr = AESCrypt.encrypt(cryptkey, iv, objStr);
var decStr = AESCrypt.decrypt(cryptkey, iv, encStr);
var decObj = JSON.parse(decStr);
console.log(decObj);

@gastrodia var iv = new Buffer(‘00000000000000000000000000000000’,’hex’).toString(‘utf-8’); var encipher = crypto.createCipheriv('aes-128-cbc’, cryptkey, iv);
这个iv到底什么东西，兄弟解释下呗。。。先谢了。

@fish public SecretKey getSecretKey(byte[] reqKey,String Algorithm){ //创建密钥 SecretKey secretKey = new SecretKeySpec(reqKey, Algorithm); return secretKey; }

@hf201429 iv是起始变数，具体的意思你可以看这篇文章

http://ijecorp.blogspot.sg/2013/08/python-m2crypto-aes-encrypt-decrypt.html

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