REST API 响应中的校验和 [英] Checksums in REST API responses

问题描述

发送带有响应内容的校验和是个好主意吗?如果是这样，计算校验和的最常用方法是什么?

Is it a good idea to send a checksum with the content of the response? And if so, what is the most common way to calculate the checksum?

示例:

HTTP/1.1 200 OK
Date: Thu, 30 Jun 2011 21:32:20 GMT
Server: Apache
Connection: close
Content-Type: application/json

22 
{test:1}

推荐答案

HTTP 的底层协议是 TCP，已经有校验和机制，所以我认为它没有用.

The underlying protocol for HTTP is TCP which already has a checksum mechanism, so I think it would be useless.

如果您仍然需要这种东西，您可以计算正文内容的 SHA1 签名，并将其作为自定义标头包含在您的响应中，例如

If you still need this kind of thing you could calculate a SHA1 signature of the body content and include it as a custom header in your response, something like

HTTP/1.1 200 OK
Date: Thu, 30 Jun 2011 21:32:20 GMT
Server: Apache
Connection: close
Content-Type: application/json
X-Checksum: 40325305549f7a09edb51ff8df9528ffd8434ac6

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