!!! Overview
[{$pagename}] is defined in [RFC 7235] and provides a general [framework] for [HTTP] [Access Control] and [authentication], via an extensible set of [challenge-response] [Authentication Schemes], which can be used by a server to challenge a client request and by a client to provide [authentication] [credentials].

The [IANA Registry] titled: "[Hypertext Transfer Protocol (HTTP) Authentication Scheme Registry|http://www.iana.org/assignments/http-authschemes|target='_blank']" defines the [namespace] for the [{$pagename}] in challenges and [credentials]. 

Some of the more common [HTTP] [Authentication Methods] are:
* [Basic Authentication Scheme]
* [OAuth 2.0 Bearer Token Usage]
* [HTTP Digest Access Authentication]

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]