1. The Future Secure GSM Workshop CIS Division NATO C3 Agency
NATO UNCLASSIFIED
The Future
Secure GSM
Workshop
CIS Division
NATO C3 Agency
NATO UNCLASSIFIED
NATO UNCLASSIFIED
20 November 2018

2. The Future - Interoperability
NATO UNCLASSIFIED
Interoperability between Secure GSM terminals
Needs an agreed standard signalling scheme
One solution is FNBDT
FNBDT - Future Narrow Band Digital Terminal
Provides interoperable secure communications between terminals using a data connection
Negotiates best secure connection between equipment
subject to communication bearer between terminals
available features in equipment e.g. voice coder
A minimum set of terminal features are mandated to ensure interoperability
FNBDT has been released to many nations
Being released to NATO
NATO UNCLASSIFIED
20 November 2018

3. The Future - Interoperable voice
NATO UNCLASSIFIED
STANAG The New NATO Narrow Band Voice Coder
Selected in Oct ‘01 after extensive competition
All NATO nations invited to submit candidate voice coders
Best performing candidate selected as STANAG 4591
STANAG 4591
Provides good quality speech at 2.4 and 1.2 kbps
Is being used in many secure communications systems
Can be used for secure GSM
Mandated as a minimum requirement for interoperability within FNBDT (in 2.4 kbps mode)
Stanag 4591 Workshop - October 18th, The Hague
Information on Stanag 4591 at
Source code available from NC3A secure site
NATO UNCLASSIFIED
20 November 2018

4. More on Secure GSM and Secure 3G
Symposium on End to End Security in Mobile Cellular Networks London, February 2003
Call for papers
Contributions are invited on the subjects of:
Secure GSM
3G security
End to end security via satellite services
Network operators viewpoints
Interoperability issues for end to end security
Market differences: Commercial vs military users
For details and submission of abstract (200 words) please contact:
ACT Branch, NC3A, The Hague, The Netherlands.
Tel: or .
This event will be unclassified and attendance open to all
More on Secure GSM and Secure 3G
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