SWORN: Secure Wake on Radio Nudging

Document Type Expired Internet-Draft (individual)
Author Carsten Bormann 
Last updated 2020-04-22 (latest revision 2019-10-20)
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Normally off devices (RFC7228) would need to expend considerable energy resources to be reachable at all times. Instead, MAC layer mechanisms are often employed that allow the last hop router of the device to "wake" the device via radio when needed. Activating these devices even for a short time still does expend energy and thus should be available to authorized correspondents only. Traditionally, this has been achieved by heavy firewalling, allowing only authorized hosts to reach the device at all. This may be too inflexible for an Internet of Things. The present report describes how to use a combination of currently standardized (or in progress) technologies to securely effect this authorization.


Carsten Bormann (cabo@tzi.org)

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