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When the user agent wants to send authentication credentials to the server, it may use the Authorization header field. The Authorization header field is constructed as follows: [9] The username and password are combined with a single colon (:). This means that the username itself cannot contain a colon.
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For example, a MITM attacker could tell clients to use basic access authentication or legacy RFC2069 digest access authentication mode. To extend this further, digest access authentication provides no mechanism for clients to verify the server's identity; A server can store HA1 = MD5(username:realm:password) instead of the password itself.
It works like a plain text file, indicating links and other items using simple code like this: [[Earth]] Editing Referencing Images Tables VisualEditor is the easier way of editing that works more like a word processor and hides the underlying source code.
Because many users re-use passwords for multiple sites, the use of a salt is an important component of overall web application security. [14] Some additional references for using a salt to secure password hashes in specific languages or libraries (PHP, the .NET libraries, etc.) can be found in the external links section below.
A well-known sign/countersign used by the Allied forces on D-Day during World War II: the challenge/sign was "flash", the password "thunder" and the countersign (to challenge the person giving the first codeword) "Welcome". [2] Some countersigns include words that are difficult for an enemy to pronounce.
HTML is a structured markup language.There are certain rules on how HTML must be written if it is to conform to W3C standards for the World Wide Web. Following these rules means that web sites are accessible on all types and makes of computer, to able-bodied and people with disabilities, and also on wireless devices like mobile phones and PDAs, with their limited bandwidths and screen sizes.
Server Side Includes (SSI) is a simple interpreted server-side scripting language used almost exclusively for the World Wide Web.It is most useful for including the contents of one or more files into a web page on a web server (see below), using its #include directive.