Hybrid Cryptosystem dengan Algoritma Enhanced RSA dan Rivest Cipher 4 Based on Chaotic Map

Abstract

In this study, we conducted experiments using the Hybrid Cryptosystem by combining the Rivest Cipher 4 Based On Chaotic Map algorithm or RCCM, which is a variant of the RC 4 Algorithm, with the Enhanced RSA, an improved RSA. The Rivest cipher 4 based on chaotic map applies chaotics mapp in key generation, so that users no longer need to enter the decryption key manually. The attack test in this study uses the Kraitchik Factorization Algorithm, which processes the attack by factoring integer numbers. The result of this research is that by doing a hybrid cryptosystem enhanced rsa and rccm can be safer due to the occurrence of twice the encryption process. Besides, on the enhanced algorithm rsa has a fake module where the value of X is a prime number so that if attacked using the kraitchik factorization algorytm it is difficult to find factorization of the value X corresponding to the number p,q,r, and s.