An important reason for generating a separate session key for each secure channe

Question

An important reason for generating a separate session key for each secure channel is to protect against replay attacks.
    a. true
    b. false

In modern distributed systems, code and data may migrate between hosts in a process described as model code.
    a. true
    b. false

A widely applied scheme for establishing a shared key across an insecure channel, is the Joe Diffie key exchange.
    a. true
    b. false

One of the key in a symmetric cryptosystem is kept private, the other is made public.
    a. true
    b. false

Kerberos was developed at Berkeley and is based on the Needham-Schroeder authentication protocol.
    a. true
    b. false

Explanation / Answer

1.

An important reason for generating a separate session key for each secure channel is to protect against replay attacks.

true

2.

In modern distributed systems, code and data may migrate between hosts in a process described as model code.

True

3.

A widely applied scheme for establishing a shared key across an insecure channel, is the Joe Diffie key exchange.

True

4.

One of the key in a symmetric cryptosystem is kept private, the other is made public.

True

5.

Kerberos was developed at Berkeley and is based on the Needham-Schroeder authentication protocol.

True

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