Message Size Overhead of CoAP Security Protocols

Document Type Replaced Internet-Draft (individual)
Author John Preuß Mattsson 
Last updated 2017-11-11
Replaced by draft-mattsson-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This Internet-Draft is no longer active.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 compression. DTLS are analyzed with two different alternatives for header compression as well as with and without Connection ID.


John Preuß Mattsson (

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