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Unique identifier. A unique identifier ( UID) is an identifier that is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. [1] The concept was formalized early in the development of computer science and information systems. In general, it was associated with an atomic data type .
The term Globally Unique Identifier ( GUID) is also used, mostly in Microsoft systems. [1] When generated according to the standard methods, UUIDs are, for practical purposes, unique. Their uniqueness does not depend on a central registration authority or coordination between the parties generating them, unlike most other numbering schemes.
Unique username - WikipediaA unique username is a name that identifies a user on a website, app, or online service. It can be chosen by the user or assigned by the system. Learn about the benefits, challenges, and policies of unique usernames, and how they are used in different platforms and contexts. Compare some examples of unusual, offensive, or creative usernames from Wikipedia and other ...
Username, email, or mobile. yahoo.com; gmail.com; outlook.com; aol.com; Forgot username? Create an account. x. AOL works best with the latest versions of the browsers ...
User-generated content ( UGC ), alternatively known as user-created content ( UCC ), is generally any form of content, such as images, videos, text, testimonials, and audio, that has been posted by users on online content aggregation platforms such as social media, discussion forums and wikis. It is a product consumers create to disseminate ...
A GoldKey security token connected to a laptop. A security token is a peripheral device used to gain access to an electronically restricted resource. The token is used in addition to, or in place of, a password. [1] Examples of security tokens include wireless keycards used to open locked doors, a banking token used as a digital authenticator ...
User identifier. Unix-like operating systems identify a user by a value called a user identifier, often abbreviated to user ID or UID. The UID, along with the group identifier (GID) and other access control criteria, is used to determine which system resources a user can access. The password file maps textual user names to UIDs.
Mutual authentication is performed using a challenge-response handshake in both directions; the server ensures that the client knows the secret, and the client also ensures that the server knows the secret, which protects against a rogue server impersonating the real server. Challenge-response authentication can help solve the problem of ...