Sciweavers

WONS
2012
IEEE

Obfuscating IEEE 802.15.4 communication using secret spreading codes

11 years 11 months ago
Obfuscating IEEE 802.15.4 communication using secret spreading codes
—The IEEE 802.15.4 standard specifies an M-ary spread spectrum system with public and fixed spreading sequences. We propose instead to use secret and dynamic, random spreading sequences to obfuscate communications. Through theory and experiments with a prototype IEEE 802.15.4 transmitter and receiver that have been adapted to use random and dynamic codes, we quantify the benefits and performance implications of our approach. We first give a theoretical approximation of the performance loss when secret random codes are used instead of the IEEE 802.15.4 codes. We identify then three transitional regions for IEEE 802.15.4 communication above thermal noise i.e., when the incoming power level at the attacker is above thermal noise. We derive the obfuscation gain for signal detection and signal interception attacks respectively in these regions. Our implementation shows the feasibility of our approach. It is also used to evaluate the performance loss and time requirements to perform at...
Bjorn Muntwyler, Vincent Lenders, Franck Legendre,
Added 25 Apr 2012
Updated 25 Apr 2012
Type Journal
Year 2012
Where WONS
Authors Bjorn Muntwyler, Vincent Lenders, Franck Legendre, Bernhard Plattner
Comments (0)