Device Pairing Design Issues

Document Type Expired Internet-Draft (dnssd WG)
Authors Daniel Kaiser  , Christian Huitema 
Last updated 2019-04-26 (latest revision 2018-10-23)
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document discusses issues and problems occuring in the design of device pairing mechanism. It presents experience with existing pairing systems and general user interaction requirements to make the case for "short authentication strings". It then reviews the design of cryptographic algorithms designed to maximise the robustness of the short authentication string mechanisms, as well as implementation considerations such as integration with TLS.


Daniel Kaiser (
Christian Huitema (

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