Dear William, Maryam, Sandra, 

That sounds excellent! 

I think we may spare 5 min on our agenda this Friday in SCHC. 
Would you like to do a short presentation of your work? 

Cheers, 
Alexander 



De: "William Atwood" <william.atw...@concordia.ca> 
À: "Anima WG" <anima@ietf.org>, "SCHC WG" <s...@ietf.org> 
Cc: "Maryam Hatami" <maryam.hat...@mail.concordia.ca>, "sandra cespedes" 
<sandra.cespe...@concordia.ca> 
Envoyé: Mardi 5 Novembre 2024 02:45:52 
Objet: [Schc] Using SCHC and Autonomic Networking together 

To the members of the SCHC and ANIMA Working Groups: 

Many IoT devices are connected to their applications using simplified 
communications protocols, often with minimal security. There is an 
increasing need to merge IoT "islands" into the general Internet; this 
is becoming more feasible as IoT device capabilities have increased. 

Communications protocols targeted for the IoT space often have very 
small MTUs, and Ipv6 addresses are quite large. Static Context Header 
Compression (SCHC) provides a methodology for reducing the size of the 
IP headers, and providing the necessary fragmentation. 

The ANIMA specifications provide a methodology (based on autonomic 
networking) for securely managing devices. 

By combining a basic set of SCHC compression rules and autonomic 
networking, we have been able to demonstrate, for LoRaWAN (a widely used 
networking technology in the IoT space) that it is feasible to manage 
IoT devices securely. 

We call the basic rule set "SCHC Zero". This rule set, and the 
certificates required by ANIMA, are installed in the device by the 
original manufacturer. Once the IoT device is accepted as a member of 
an ANIMA domain, its rule set can be (securely) updated to correspond to 
the needs of the application that is to run on it. In addition, other 
updates can be performed (to basic software or applications) with the 
assurance that the device is properly identified. 

We have done the verification for both BRSKI and cBRSKI, and for LORaWAN 
spreading factors from 7 (best case) to 12 (worst case). 

A pre-print of a submitted paper is available to anyone who is 
interested: "A Framework for Secure Autonomic IoT Device Management in 
Constrained Networks". Please send your request to Bill Atwood or 
Sandra Cespedes. 

This work is based on the master's thesis of Maryam Hatami at Concordia 
University. A copy of the full thesis is also available. 

Maryam Hatami 
Sandra Céspedes <sandra.cespe...@concordia.ca> 
Bill Atwood <william.atw...@concordia.ca> 

-- 
Dr. J.W. Atwood, Eng. tel: +1 (514) 848-2424 x3046 
Distinguished Professor Emeritus fax: +1 (514) 848-2830 
Department of Computer Science 
and Software Engineering 
Concordia University ER 1234 email:william.atw...@concordia.ca 
1455 de Maisonneuve Blvd. West http://users.encs.concordia.ca/~bill 
Montreal, Quebec Canada H3G 1M8 

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