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Definition of "Authentication" |
Authentication is the process of determining whether someone or something is, in fact, who or what it is declared to be. / Authentication is the process of determining whether someone or something is, in fact, who or what it is declared to be. In private and public computer networks (including the Internet), authentication is commonly done through the use of logon passwords. Knowledge of the password is assumed to guarantee that the user is authentic. Each user registers initially (or is registered by someone else), using an assigned or self-declared password. On each subsequent use, the user must know and use the previously declared password. The weakness in this system for transactions that are significant (such as the exchange of money) is that passwords can often be stolen, accidentally revealed, or forgotten. / Duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously. An example of a duplex device is a telephone. The people at both ends of a telephone call can speak at the same time and simultaneously each be heard by the other at the same time. |
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