THE IMPROVEMENT OF AECC CRYTOSYSTEM BY POINTS ON THE ELLIPTIC CURVE: A PROPOSAL

Abstract

The AECC cryptosystem on elliptic curves uses an algorithm to generate a data series before launches the process of encryption and decryption. The advantage of the data sequence generation algorithm is the increase of the cryptanalysis complexity but it has disadvantage which is the outrageous consumption of memory and processing time. In this paper, the research team proposed a solution to improve this cryptosystem by eliminating the generation of data series in purpose of encryption. Instead, the proposed algorithm uses index of point corresponding character for encrypting. The result is the size of the ciphertext is lower and the use of bandwidth for transmitting this ciphertext decreases.