Irrational-based Authenticated Cryptosystem with Cipher-feedback

摘要

Strong cryptographic security, short encryption time, and robustness against noise are three goals of cryptosystem. However, most existing chaotic cryptosystems only focus on the research of enhancing cryptographic security and shortening encryption time, and the main problem in the real communication system is not the security of an encryption scheme, but rather its data integrity, accountability and its robustness against noise. To overcome drawbacks and weaknesses of these existing algorithms, an irrational-based authenticated cryptosystem with cipher-feedback is proposed in this paper. Theoretical analysis and simulation results show that the proposed algorithm not only can ensure the integrity of data, resist, statistical attack and exhaustive attack effectively, but also is bettor in robustness against noise or other external disturbances.