How many keys are required for two people to communicate via a symmetric cipher?

Fundamentals of Information Systems
8th Edition
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter4: Telecommunications And Networks
Section: Chapter Questions
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How many keys are required for two people to
communicate via a symmetric cipher?
Transcribed Image Text:How many keys are required for two people to communicate via a symmetric cipher?
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