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HIP Diet EXchange (DEX)

Document Type Expired Internet-Draft (hip WG)
Expired & archived
Authors Robert Moskowitz , Rene Hummen , Miika Komu
Last updated 2021-08-02 (Latest revision 2021-01-19)
Replaces draft-moskowitz-hip-dex
RFC stream Internet Engineering Task Force (IETF)
Additional resources Mailing list discussion
Stream WG state Dead WG Document
Other - see Comment Log
Document shepherd Gonzalo Camarillo
Shepherd write-up Show Last changed 2019-10-31
IESG IESG state Expired (IESG: Dead)
Consensus boilerplate Yes
Telechat date (None)
Responsible AD Éric Vyncke
IESG note
Send notices to Gonzalo Camarillo <>
IANA IANA review state IANA - Not OK

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document specifies the Host Identity Protocol Diet EXchange (HIP DEX), a variant of the Host Identity Protocol Version 2 (HIPv2) and specifically developed for use on low end processors. The HIP DEX protocol design aims at reducing the overhead of the employed cryptographic primitives by omitting public-key signatures and cryptographic hash functions. The HIP DEX protocol is primarily designed for computation or memory- constrained sensor/actuator devices. Like HIPv2, it is expected to be used together with a suitable security protocol such as the Encapsulated Security Payload (ESP) for the protection of upper layer protocol data. Unlike HIPv2, HIP DEX does not support Forward Secrecy (FS), and MUST only be used on devices where FS is prohibitively expensive. In addition, HIP DEX can also be used as a keying mechanism for security primitives at the MAC layer, e.g., for IEEE 802.15.4 networks.


Robert Moskowitz
Rene Hummen
Miika Komu

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