如何我的Node.js服务器上验证GKLocalPlayer [英] How to authenticate the GKLocalPlayer on my Node.js server

问题描述

在<一个href=\"https://developer.apple.com/library/ios/documentation/GameKit/Reference/GKLocalPlayer_Ref/Reference/Reference.html#//apple_ref/occ/instm/GKLocalPlayer/generateIdentityVerificationSignatureWithCompletionHandler%3a\"相对=nofollow称号=GKLocalPlayer类参考：generateIdentityVerificationSignatureWithCompletionHandler>苹果的文档，generateIdentityVerificationSignatureWithCompletionHandler ，你要连接成一个数据缓冲区4个参数，这是以big-endian时间戳参数的一UINT-64格式的，然后生成一个验证SHA-1散列值。

In Apple's Doc, generateIdentityVerificationSignatureWithCompletionHandler, you are to concatenate into a data buffer 4 parameters, one of which being "The timestamp parameter in Big-Endian UInt-64 format", and then generate a SHA-1 hash value for verification.

有没有人做到了这一点成功的Node.js / JavaScript的我遇到的主要问题是使用Javascript / Node.js的似乎没有任何支持64位无符号的大端整数？;它似乎的最大输出的32位无符号。

Has anyone accomplished this successfully in Node.js/Javascript? The main issue I am having is that Javascript/Node.js does not seem to have any support 64-bit unsigned big endian integers; it seems to max out at 32-bit, unsigned.

PS：我知道有以下相关的问题，但他们不解决这个特定的JavaScript的问题。

PS: I know there the following related questions, but they do not tackle this particular javascript issue.

1. 如何在我的'第三方认证GKLocalPlayer
   ？服务器的：该解决方案是红宝石，Python和OBJ-C;所有
   其生产的64位原生支持BE十六进制的
   时间戳。


2. How验证来自第三方的node.js游戏中心用户
   服务器：在code依赖于客户端向服务器发送一个上
   时间戳已经在十六进制字符串的形式（见
   json.hexTimestamp ，围绕LN 22）

1. How to authenticate the GKLocalPlayer on my 'third party server'?: the solutions are for ruby, python, and obj-c; all having native support for producing the 64-bit BE hex for the timestamp.
2. How to authenticate Game Center User from 3rd party node.js server: the code relies on the client sending the server a timestamp already in the form of a hex string (see json.hexTimestamp, around ln 22)

它甚至能够可靠地创建一个64位无符号大端的十六进制再presentation ... 在JavaScript 的？我正在考虑通过Node.js的执行红宝石/ Python作为一个可能的解决方法。

Is it even possible to reliably create the hex representation of a 64-bit unsigned big endian ... in javascript? I'm considering executing ruby/python via Node.js as a possible workaround.

推荐答案

更​​简单的方法是使用REF

The easier way is to use ref

var ref = require('ref');

var buf = ref.alloc('uint64');
ref.writeUInt64BE(buf, 0, '1401893400733');

之后，你可以使用缓冲区来更新验证。

after that you could use the buffer to update the verifier.

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