node AES 对称加、解密

'use strict';const crypto = require('crypto');/**

* @util 加密、解密工具类

*/class CryptoUtil {    /**

    * 解密

    * @param dataStr {string}

    * @param key {string}

    * @param iv {string}

    * @return {string}

    */   

static Decrypt(dataStr, key, iv) { 

    let cipherChunks = [];     

    let decipher = crypto.createDecipheriv('aes-128-cbc', key, iv);   

    decipher.setAutoPadding(true);   

    cipherChunks.push(decipher.update(dataStr, 'base64', 'utf8'));

    cipherChunks.push(decipher.final('utf8'));   

    return cipherChunks.join('');   

} 

  /**

    * 加密

    * @param dataStr {string}

    * @param key {string}

    * @param iv {string}

    * @return {string}

    */ 

static Encrypt(dataStr, key, iv) {   

    let cipherChunks = []; 

    let cipher = crypto.createCipheriv('aes-128-cbc', key, iv);     

    cipher.setAutoPadding(true);   

    cipherChunks.push(cipher.update(dataStr, 'utf8', 'base64'));     

    cipherChunks.push(cipher.final('base64'));     

    return cipherChunks.join(''); 

  }}

module.exports = CryptoUtil;