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Beyond 64KB Limit of IKEv2 Payload

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Expired".
Expired & archived
Authors C. Tjhai , Tobias Heider , Valery Smyslov
Last updated 2021-05-03 (Latest revision 2020-10-30)
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Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The maximum Internet Key Exchange Version 2 (IKEv2) payload size is limited to 64KB. This makes IKEv2 not usable for conservative post- quantum cryptosystem whose public-key is larger than 64KB. This document describes the mechanisms and considerations to exchange such large key-establishment data in IKEv2.


C. Tjhai
Tobias Heider
Valery Smyslov

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)