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IETF RFC 5723
[ACTIVE]

Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption

Metadata

Publisher
IETF
Doc Type
Standard
Pages
26
Abstract
The Internet Key Exchange version 2 (IKEv2) protocol has a certain computational and communication overhead with respect to the number of round trips required and the cryptographic operations involved. In remote access situations, the Extensible Authentication Protocol (EAP) is used for authentication, which adds several more round trips and consequently latency. To re-establish security associations (SAs) upon a failure recovery condition is time consuming especially when an IPsec peer (such as a VPN gateway) needs to re-establish a large number of SAs with various endpoints. A high number of concurrent sessions might cause additional problems for an IPsec peer during SA re-establishment. In order to avoid the need to re-run the key exchange protocol from scratch, it would be useful to provide an efficient way to resume an IKE/IPsec session. This document proposes an extension to IKEv2 that allows a client to re-establish an IKE SA with a gateway in a highly efficient manner, utilizing a previously established IKE SA. A client can reconnect to a gateway from which it was disconnected. The proposed approach encodes partial IKE state into an opaque ticket, which can be stored on the client or in a centralized store, and is later made available to the IKEv2 responder for re-authentication. We use the term ticket to refer to the opaque data that is created by the IKEv2 responder. This document does not specify the format of the ticket but examples are provided. [STANDARDS-TRACK]
Publication Date
2010-01-01
Status Note
Proposed Standard
DOI
10.17487/RFC5723
Link
https://doi.org/10.17487/RFC5723
Author(s)
Yaron Sheffer
Hannes Tschofenig
Keyword(s)
IKE, Session Resumption, Failover, High Availability, Cryptographic Ticket, Cryptographic Token
Latest version of IETF RFC 5723

Document Versions — IETF RFC 5723

  • ▶ IETF RFC 5723 (2010-01-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

  • Kaufman, C., Hoffman, P., Nir, Y., and P. Eronen, "Internet Key Exchange Protocol: IKEv2", Work in Progress, October 2009. EXTERNAL
  • Bloom, B., "Space/time trade-offs in hash coding with allowable errors", Comm. ACM 13(7):422-6, July 1970. EXTERNAL
  • Xu, Y., Yang, P., Ma, Y., Deng, H., and H. Deng, "IKEv2 SA Synchronization for session resumption", Work in Progress, October 2008. EXTERNAL
  • Ertekin, E., Christou, C., Jasani, R., Kivinen, T., and C. Bormann, "IKEv2 Extensions to Support Robust Header Compression over IPsec (ROHCoIPsec)", Work in Progress, December 2009. EXTERNAL
  • Eronen, P., Tschofenig, H., and Y. Sheffer, "An Extension for EAP-Only Authentication in IKEv2", Work in Progress, October 2009. EXTERNAL
  • Rescorla, E., "How to Implement Secure (Mostly) Stateless Tokens", Work in Progress, March 2007. EXTERNAL
  • IETF RFC 4086 [Active*]
  • IETF RFC 4301 [Active, Amended*]
  • IETF RFC 4478 [Active*]
  • IETF RFC 4555 [Active*]
  • IETF RFC 4718 [Superseded*]
  • IETF RFC 4739 [Active*]
  • IETF RFC 4754 [Active*]
  • IETF RFC 4806 [Active*]
  • IETF RFC 5077 [Superseded*]
  • IETF RFC 5685 [Active*]
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IETF RFC 5723, Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption. Available at https://doi.org/10.17487/RFC5723
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IETF RFC 5723, Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption. Available at https://doi.org/10.17487/RFC5723

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IETF RFC 5723, Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption. Available at https://doi.org/10.17487/RFC5723
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<span class="citation"><cite>IETF RFC 5723</cite>, Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption. Available at <a href="https://doi.org/10.17487/RFC5723" target="_blank" rel="noopener">https://doi.org/10.17487/RFC5723</a></span>

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IETF RFC 5723, Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption
doi: 10.17487/RFC5723
url: https://doi.org/10.17487/RFC5723
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<li>
<cite id="bib-rfc5723">IETF RFC 5723</cite>, Internet Key Exchange Protocol Version 2 (IKEv2) Session Resumption
<span class="doi">10.17487/RFC5723</span>
</li>

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