PHP / Javascript / JQuery - base64 sha256编码 [英] PHP / Javascript / JQuery - base64 sha256 encoding

问题描述

我正在尝试将API集成的PHP示例移植到Javascript / JQuery。在PHP中，使用以下代码创建加密字符串：

I'm trying to port a PHP example of an API integration to Javascript / JQuery. In PHP, an encrypted string is created using the following code:

$sig = base64_encode(hash_hmac('sha256', $sign, $this->secretAccessKey, true)

其功能记录在此处：

http://php.net/manual /en/function.hash-hmac.php

http://us.php.net/base64_encode

在Javascript中，我使用JQuery的加密来执行HMAC：

In Javascript, I'm using JQuery's crypto to do the HMAC piece:

http://code.google.com/p/crypto-js/#HMAC-SHA256

我正在试图弄清楚我是否还需要做base64编码，因为它似乎已经在base64中了。这就是我正在运行的代码：

and I'm trying to figure out if I also need to do a base64 encode, as it seems it is already in base64. This is the code I'm currently running:

var sigHash = Crypto.HMAC(Crypto.SHA256, sign, accessKey);

这是正确的吗？我将如何创建？一个javascript / jquery等价于上面的PHP函数？

Is this correct? How would I create a javascript / jquery equivalent of the above PHP function?

推荐答案

HMAC是一个标准。 SHA-256也是如此。所以他们的输出，无论哪种实现，都必须相同。

HMAC is a standard. So is SHA-256. So their outputs, regardless of which implementation, has to be the same.

Base64编码只能存在差异。通常，非字母数字字符是 + 和 / ，但你不能指望它。我已经检查过，两个实现都使用相同的非字母数字字符。

There could only be differences in the Base64 encoding. Normally, the non-alphanumeric characters are + and /, but you cannot count on that. I've checked, and both implementations use the same non-alphanumeric characters.

但是，你仍然应该手动检查几千个字符串。 PHP中的实现经过了充分测试。但我不知道jQuery中的实现是否也是如此...

However, you should still "manually" check a few thousand strings. The implementation in PHP is well tested. But I do not know if the same is true for the implementation in jQuery...

Base64编码输出的语法是：

The syntax for Base64 encoded output is:

Crypto.util.bytesToBase64(
    Crypto.HMAC(Crypto.SHA256, sign, accessKey, { asBytes: true })
);

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