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Which of the following can best be defined as a key dis…

Which of the following can best be defined as a key distribution protocol that uses hybrid encryption to convey
session keys? This protocol establishes a long-term key once, and then requires no prior communication in
order to establish or exchange keys on a session-by-session basis?

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A.
Internet Security Association and Key Management Protocol (ISAKMP)

B.
Simple Key-management for Internet Protocols (SKIP)

C.
Diffie-Hellman Key Distribution Protocol

D.
IPsec Key exchange (IKE)

Explanation:
Simple Key-management for Internet Protocols (SKIP) was a protocol developed by the IETF Security Working
Group for the sharing of encryption keys. It is a hybrid Key distribution protocol.
Incorrect Answers:
A: Internet Security Association and Key Management Protocol (ISAKMP) provides a framework for security
association creation and key exchange.
C: Diffie–Hellman key exchange (D–H) is a specific method of securely exchanging cryptographic keys via a
public channel
D: Internet Key Exchange (IKE) provides authenticated keying material for use with ISAKMP.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 863
https://en.wikipedia.org/wiki/Simple_Key-Management_for_Internet_Protocol
https://en.wikipedia.org/wiki/Diffie–Hellman_key_exchange


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