Lightweight mutual authentication for CoAP (WIP)

Document Type Expired Internet-Draft (individual)
Last updated 2014-09-04 (latest revision 2014-03-03)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This draft presents a work-in-progress on a challenge-response based lightweight authentication scheme to mutually authenticate CoAP client and server for establishing a secure unicast communication channel. The draft discusses the generic idea behind the proposed authentication scheme, as well as presents its CoAP specific adoption. The proposed scheme has low communication overhead and can be a robust alternative against the usual DTLS based connection initiation scheme with PSK.


Abhijan Bhattacharyya (
Soma Bandyopadhyay (
Arijit Ukil (
Tulika Bose (
Arpan Pal (

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