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arXiv · 2506.12359

An Efficient Hardware Implementation of Elliptic Curve Point Multiplication over $GF(2^m)$ on FPGA

Ruby Kumari·Tapas Rout·Babul Saini·Jai Gopal Pandey·Abhijit Karmakar
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Abstract

Elliptic Curve Cryptography (ECC) is widely accepted for ensuring secure data exchange between resource-limited IoT devices. The National Institute of Standards and Technology (NIST) recommended implementation, such as B-163, is particularly well-suited for Internet of Things (IoT) applications. Here, Elliptic Curve Point Multiplication (ECPM) is the most time-critical and resource-intensive operation due to the finite field multiplier. This paper proposes a new implementation method of finite field multiplication using a hybrid Karatsuba multiplier, which achieves a significant improvement in computation time while maintaining a reasonable area footprint. The proposed multiplier, along with a finite field adder, squarer, and extended Euclidean inversion circuit, is used to implement an architecture for ECPM using the Montgomery algorithm. The architecture is evaluated for $GF(2^{163})$ on the Xilinx Virtex-7 FPGA platform, achieving a maximum frequency of 213~MHz and occupying 14,195 Lookup Tables (LUTs). The results demonstrate a significant speedup in computation time and overall performance compared to other reported designs.

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Ruby Kumari, Tapas Rout, Babul Saini, Jai Gopal Pandey, Abhijit Karmakar. 2025-06-14. An Efficient Hardware Implementation of Elliptic Curve Point Multiplication over $GF(2^m)$ on FPGA. https://doi.org/10.1007/978-981-97-3756-7_20

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