官方nodejs解密这段代码， 有一定的概率出现throw new Error('Illegal Buffer')
请问是什么原因，查了很久参数传送没问题。求官方给我回复，在线等，因为上线前遇到这个奇怪问题，见到论坛都有类似的问题 都没有解决的。！！！！！！
相关介绍：https://mp.weixin.qq.com/debug/wxadoc/dev/api/signature.html
提供相关的真实数据方便官方帮忙查找下原因是什么：
var appId = "wxb52dabb4ae6c5e5f";var sessionKey = "Av/kbm77la18Bo+vDfg9Hw==";var encryptedData = "wtv8PmAjj/ht48phniECl6DlLjar8OuIC9ghKH6yyNmo6FzHQIKc4/Rf3BkvHdWgT62ogUvxjMkmVFUvOpkKpFMYZ5YFk6Nd3MghV8kdrWLuf5XnoqGLkFhI+LVTkhlbeGF3UQZCIn4N0wfnvbjnWTrdiUaqJRyMz7vh0xggRPL3PHcaIb5oyYrV349xsb4gyzeKPpTRC9ED3o4Yf+SPLExfdiTBnaZ1OaYsdqsVirgh60Z7OxTmXVUAsedbSJZ4z4+nJvbkE/63Twb/a8+64ByPhojwMSsqJru5mLFFIZ+LEf250K+sqfbMhvWnmAYdQLy0ZcSKKqXzFZMmZGa56V5IdRQc8jo4gYVzrhuxbynQghQcjpRYDLDdUUWn5alAg8ruQ6D7uM1qygGbluASixUR59w59UP2QGplgDOXCazC90NB/0ZokvrATObKXpixiUgMu+azL9pEUgCoi1mxaMp47mpl5zyGCAuDoG/54cQ=";var iv = "7vXKt43CYsQwntPHIImz0Q=="; |
=================================
var crypto = require('crypto')function WXBizDataCrypt(appId, sessionKey) { this.appId = appId this.sessionKey = sessionKey}WXBizDataCrypt.prototype.decryptData = function (encryptedData, iv) { // base64 decode var sessionKey = new Buffer(this.sessionKey, 'base64') encryptedData = new Buffer(encryptedData, 'base64') iv = new Buffer(iv, 'base64') try { // 解密 var decipher = crypto.createDecipheriv('aes-128-cbc', sessionKey, iv) // 设置自动 padding 为 true，删除填充补位 decipher.setAutoPadding(true) var decoded = decipher.update(encryptedData, 'binary', 'utf8') decoded += decipher.final('utf8') decoded = JSON.parse(decoded) } catch (err) { throw new Error('Illegal Buffer') } if (decoded.watermark.appid !== this.appId) { throw new Error('Illegal Buffer') } return decoded}module.exports = WXBizDataCrypt |
求问
同问