Lectures notes for 2010 - KTH
Lectures notes for 2010 - KTH Lectures notes for 2010 - KTH
ISAKMP ISAKMP is based on the Diffie-Hellman key exchange protocol; it assumes the identities of the two parties are known. Using ISAKMP you can: • control the level of trust in the keys, • force SPIs to be changed at an appropriate frequency, • identify keyholders via digital certificates [requires using a certificate authority (CA)] For further information see: • Internet Security Association and Key Management Protocol (ISAKMP) - RFC 2408 [4] • The Internet IP Security Domain of Interpretation for ISAKMP - RFC 2407 [5] • The OAKLEY Key Determination Protocol - RFC 2412 [6] • The Internet Key Exchange (IKE) - RFC 2409 [7] Maguire ISAKMP 12: 10 of 30 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
Where can you run IPSec? Mode Where it runs Payload Transport end-systems payload data follows the normal IP header Tunnelling internetworking device: e.g., router, firewall, or VPN gateway • end-user’s entire packet-IP headers and all-placed within another packet with ESP or AH fields [thus it is encapsulated in another packet] • can hide the original source and destination address information AS1 tunnel AS3 AS4 AS2 Figure 4: IPSec usage red = secure, black = unsecure AS5 Maguire Where can you run IPSec? 12: 11 of 30 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
- Page 709 and 710: Identification γ Z C Y B α γ Z C
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- Page 799 and 800: What Would Google Do? Jeff Jarvis
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ISAKMP<br />
ISAKMP is based on the Diffie-Hellman key exchange protocol; it assumes the<br />
identities of the two parties are known.<br />
Using ISAKMP you can:<br />
• control the level of trust in the keys,<br />
• <strong>for</strong>ce SPIs to be changed at an appropriate frequency,<br />
• identify keyholders via digital certificates<br />
[requires using a certificate authority (CA)]<br />
For further in<strong>for</strong>mation see:<br />
• Internet Security Association and Key Management Protocol (ISAKMP)<br />
- RFC 2408 [4]<br />
• The Internet IP Security Domain of Interpretation <strong>for</strong> ISAKMP -<br />
RFC 2407 [5]<br />
• The OAKLEY Key Determination Protocol - RFC 2412 [6]<br />
• The Internet Key Exchange (IKE) - RFC 2409 [7]<br />
Maguire ISAKMP 12: 10 of 30<br />
maguire@kth.se <strong>2010</strong>.03.21 Internetworking/Internetteknik
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