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Status:

PROPOSED STANDARD

Obsoletes:

RFC 5201

Updated by:

RFC 8002,RFC 9374

Authors:

R. Moskowitz, Ed.
T. Heer
P. Jokela
T. Henderson

Stream:

IETF

Source:

hip (int)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC7401

Discuss this RFC: Send questions or comments to the mailing listhipsec@ietf.org

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Abstract

This document specifies the details of the Host Identity Protocol(HIP). HIP allows consenting hosts to securely establish andmaintain shared IP-layer state, allowing separation of the identifierand locator roles of IP addresses, thereby enabling continuity ofcommunications across IP address changes. HIP is based on aDiffie-Hellman key exchange, using public key identifiers from a newHost Identity namespace for mutual peer authentication. The protocolis designed to be resistant to denial-of-service (DoS) andman-in-the-middle (MitM) attacks. When used together with anothersuitable security protocol, such as the Encapsulating SecurityPayload (ESP), it provides integrity protection and optionalencryption for upper-layer protocols, such as TCP and UDP.

This document obsoletes RFC 5201 and addresses the concerns raised bythe IESG, particularly that of crypto agility. It also incorporateslessons learned from the implementations of RFC 5201.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.