Comparison of CoAP Security Protocols

Document Type Replaced Internet-Draft (individual)
Authors John Preuß Mattsson  , Francesca Palombini 
Last updated 2018-03-19
Replaces draft-mattsson-core-security-overhead
Replaced by draft-ietf-lwig-security-protocol-comparison
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document analyzes and compares per-packet message size overheads when using different security protocols to secure CoAP. The analyzed security protocols are DTLS 1.2, DTLS 1.3, TLS 1.2, TLS 1.3, and OSCORE. DTLS and TLS are analyzed with and without 6LoWPAN-GHC compression. DTLS is analyzed with and without Connection ID.


John Preuß Mattsson (
Francesca Palombini (

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