Security
Security |
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Privacy, sometimes referred to as confidentiality, is the prevention of message flow to anyone other than the intended recipients. Alice may want the session between her workstation and the network printer to be private so that anyone using a network protocol analyzer (often referred to as a network sniffer), such as Microsoft® Network Monitor, cannot see what Alice is printing. This privacy is often achieved by encrypting or scrambling the data as it flows between the two computers. (Encryption is discussed later in this section.)
Privacy is optional; it does not require authentication or authorization.