Analysis and Implementation of ECC Algorithm in Lightweight Device

Abstract

Cryptography is a process that converts ordinary text into cipher text and vice-versa. It is not only protecting the data from theft, but can also be used for user authentication. The large number of slices increases the size of devices. In order to reduce the number of slices, lightweight algorithms are used. Achieving high speed and less memory space are the key issues in lightweight devices using conventional cryptographic algorithms. Hence Elliptic Curve Cryptographic Algorithm (ECC) is chosen, as its key size is very less and secure compared to conventional cryptographic algorithms. Elliptic-curve cryptography is a lightweight public-key cryptographic algorithm as it requires smaller keys compared to private-key cryptographic algorithms. In this paper, an ECC algorithm over Galois Field GF (2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> ) for lightweight systems is proposed where the main focus is on reduction in area and the simulation and synthesis results of 8-bit ECC crypto processor are discussed. Therefore, a compact design for ECC crypto processor applicable to lightweight devices can be developed.