Secure communication if organization uses symmetric cipher

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Reference no: EM1364081

An organization has 300 members. It is desired that each member of the organization be able to communicate securely with any other member, without any other member being able to decrypt their messages. How many unique keys are required if:

a. The organization uses a symmetric cipher.

b. The organization uses an asymmetric cipher.

Reference no: EM1364081

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