生成新API密钥的最佳方法是什么?

问题描述

因此，现在有许多不同的服务，例如Google API，Twitter API，Facebook API等.

So with lots of different services around now, Google APIs, Twitter API, Facebook API, etc etc.

每个服务都有一个API密钥，例如:

Each service has an API key, like:

AIzaSyClzfrOzB818x55FASHvX4JuGQciR9lv7q

所有密钥的长度和所包含的字符各不相同，我想知道生成API密钥的最佳方法是什么?

All the keys vary in length and the characters they contain, I'm wondering what the best approach is for generating an API key?

我不是在要求特定的语言，只是要求创建密钥的一般方法，它们应该是对用户应用程序的详细信息进行加密，散列还是随机字符串的散列等.我们应该担心吗?关于哈希算法(MSD，SHA1，bcrypt)等?

I'm not asking for a specific language, just the general approach to creating keys, should they be an encryption of details of the users app, or a hash, or a hash of a random string, etc. Should we worry about hash algorithm (MSD, SHA1, bcrypt) etc?

修改:我已经和几个朋友(电子邮件/推特)进行了交谈，他们建议只使用带有破折号的GUID.

I've spoke to a few friends (email/twitter) and they recommended just using a GUID with the dashes stripped.

尽管这对我来说似乎有点不客气，希望能得到更多的想法.

This seems a little hacky to me though, hoping to get some more ideas.

推荐答案

使用专为密码学设计的随机数生成器.然后以64为基数对数字进行编码.

Use a random number generator designed for cryptography. Then base-64 encode the number.

这是一个C#示例:

var key = new byte[32];
using (var generator = RandomNumberGenerator.Create())
    generator.GetBytes(key);
string apiKey = Convert.ToBase64String(key);

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