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2007
Springer

Enabling Full-Size Public-Key Algorithms on 8-Bit Sensor Nodes

10 years 7 months ago
Enabling Full-Size Public-Key Algorithms on 8-Bit Sensor Nodes
Abstract. In this article we present the fastest known implementation of a modular multiplication for a 160-bit standard compliant elliptic curve (secp160r1) for 8-bit micro controller which are typically used in WSNs. The major part (77%) of the processing time for an elliptic curve operation such as ECDSA or EC Diffie-Hellman is spent on modular multiplication. We present an optimized arithmetic algorithm which significantly speed up ECC schemes. The reduced processing time also yields a significantly lower energy consumption of ECC schemes. With our implementation results we can show that a 160-bit modular multiplication can be performed in 0.39 ms on an 8-bit AVR processor clocked at 7.37 MHz. This brings the vision of asymmetric cryptography in the field of WSNs with all its benefits for key-distribution and authentication a step closer to reality.
Leif Uhsadel, Axel Poschmann, Christof Paar
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where ESAS
Authors Leif Uhsadel, Axel Poschmann, Christof Paar
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