尝试在Cipher.update中以不受支持的状态添加数据 [英] Trying to add data in unsupported state at Cipher.update

问题描述

下面的代码正常工作

var crypto = require('crypto');
var cipher = crypto.createCipher('aes-128-cbc','abcdefghijklmnop')
var http = require('http')

var userStr = 'a134aad';
var crypted = cipher.update(userStr, 'utf8', 'hex');
crypted += cipher.final('hex');
console.log(crypted);

但是当放入服务器回调时，它将不起作用，并且在请求到达时会在err以下抛出，并且节点被挤压：

But when put into a server callback it doesn't work, and throws below err when a request arriving, and node is crush:

http.createServer(function(req, res){
    var userStr = 'a134aad';
    var crypted = cipher.update(userStr, 'utf8', 'hex');
    crypted += cipher.final('hex');
    console.log(crypted);

    res.end('hello');
}).listen(9888)

---------------------------------

7364aee753f0568f7e5171add6868b75
crypto.js:170
  var ret = this._handle.update(data, inputEncoding);
                         ^
Error: Trying to add data in unsupported state
    at Cipher.update (crypto.js:170:26)
    at Server.<anonymous> (C:\Users\58\Desktop\sha256.js:12:26)
    at emitTwo (events.js:126:13)
    at Server.emit (events.js:214:7)
    at parserOnIncoming (_http_server.js:602:12)
    at HTTPParser.parserOnHeadersComplete (_http_common.js:117:23)

推荐答案

结果

var cipher = crypto.createCipher（'aes-128-cbc'，'abcdefghijklmnop'）


不应该重复使用。我也将其放入服务器回调中，问题已解决。

should not be reused. I put it into the server callback too and the problem is solved.

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