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Efficient Java Implementation of Elliptic Curve Cryptography for J2ME-Enabled Mobile Devices

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Executive Summary

The Micro Edition is of the Java 2 platform (J2ME) provides an application environment specifically designed to address the demands of embedded devices like cell phones, PDAs or set-top boxes. Since, the J2ME platform does not include a crypto package, developers are forced to use third-party classes or to implement all cryptographic primitives from scratch. However, most existing implementations of Elliptic Curve (EC) cryptography for J2ME do not perform well on resource-restricted devices, in most cases due to poor efficiency of the underlying arithmetic operations. In this paper, the authors present an optimized Java implementation of EC scalar multiplication that combines efficient finite-field arithmetic with efficient group arithmetic.

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