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In the context of an HTTP transaction, basic access authentication is a method for an HTTP user agent (e.g. a web browser) to provide a user name and password when making a request. In basic HTTP authentication, a request contains a header field in the form of Authorization: Basic <credentials> , where <credentials> is the Base64 encoding of ID ...
The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication. 401 semantically means "unauthenticated", the user does not have valid authentication credentials for the target resource. 402 Payment Required Reserved for ...
Download QR code; Print/export Download as PDF; ... move to sidebar hide. HTTP authentication may refer to: Basic access authentication; Digest access authentication ...
Basic access authentication; Digest access authentication; ... If the 301 status code is received in response to a request of any type other than GET or HEAD, the ...
Here’s how it works: If Facebook notices a log-in attempt from a device or browser that you haven’t previously used, it’ll ask for a password plus a verification code that the site will send ...
The basic access control mechanism has been criticized as offering too little protection from unauthorized interception. Researchers claim [5] that because there are only limited numbers of passport issued, many theoretically possible passport numbers will not be in use in practice. The limited range of human age ranges further reduce the space ...
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Formally, a message authentication code (MAC) system is a triple of efficient [4] algorithms (G, S, V) satisfying: G (key-generator) gives the key k on input 1 n , where n is the security parameter.