How many keys are collectively needed

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Reference no: EM131329171

Imagine a peer-to-peer network where 1000 users want to communicate in an authenticated and confidential way without a central Trusted Third Party (TTP). ]

1. How many keys are collectively needed, if symmetric algorithms are deployed?

2. How are these numbers changed, if we bring in a central instance (Key Distribution Center, KDC)?

3. What is the main advantage of a KDC against the scenario without a KDC?

4. How many keys are necessary if we make use of asymmetric algorithms? Also differentiate between keys which every user has to store and keys which are collectively necessary

Reference no: EM131329171

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