L39-IKE - IPSec Key Establishment • IPSec = IP (Internet...

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IPSec IPSec Key Establishment Key Establishment • IPSec = IP (Internet Protocol) Security – IPSec protection protocols – IPSec key establishment
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IPSec IPSec Key Management Key Management • IPSec Key Management is all about establishing and maintaining Security Associations (SAs) between pairs of communicating nodes
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IPSec IPSec Key Management Key Management • Establishes a Security Association (SA) for a session – “shared secret key” for each pair of communicating parties. – SA used to provide authentication and confidentiality services for that session. – SA is referenced via a security parameter index (SPI) in each IP datagram header.
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Internet Key Exchange (IKE) Internet Key Exchange (IKE) • IKE is a suite of authentication and authenticated key exchange protocols. • Each protocol in the suite is a hybrid one which uses part of “ Oakley ”, part of “ SKEME ” and part of “ ISAKMP ”. –Oak
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L39-IKE - IPSec Key Establishment • IPSec = IP (Internet...

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