/**

 * Created by linli on 2015/8/25.

 */

var crypto = require('crypto');

//加密

exports.cipher = function(algorithm, key, buf) {

    var encrypted = "";

    var cip = crypto.createCipher(algorithm, key);

    encrypted += cip.update(buf, 'binary', 'hex');

    encrypted += cip.final('hex');

    return encrypted

};

//解密

exports.decipher = function(algorithm, key, encrypted) {

    var decrypted = "";

    var decipher = crypto.createDecipher(algorithm, key);

    decrypted += decipher.update(encrypted, 'hex', 'binary');

    decrypted += decipher.final('binary');

    return decrypted

};