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Sunday, 6 May 2012

What is IKE & Purpose of IKE


Internet Key Exchange – A key and Security Association (SA) management protocol that implements Oakley and Skeme key exchanges inside the ISAKMP framework

ISAKMP: - Defines the mechanics of implementing a key exchange protocol and negotiating a Security Association
Oakley:- Defines how to derive authenticated keying material
Skeme: - Defines how to derive authenticated keying material with rapid key refreshment.

Two Purposes of IKE :-
1. Using Public and Private Key Pairs, IKE derives a symmetric, data encryption session Key using the Diffie-Hellman Key Exchange Protocol
2. IKE negotiates session specific IKE and IPSec protocol usage (Security Association)

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