Design of Changeable P-box and Two Modules Structure in Block Cryptosystem Based on Chaos
The idea of using a one-time-one-key design has been widely applied in conventional cryptography. According to the security theory of conventional cryptology, encryption algorithms are made public and all secrets are encoded only in the keys. This paper applies chaos theory to conventional cryptography, and takes DES for an example, generated changeable P-box by using chaotic algorithm. In fact, it makes a conventional crypto-algorithm become a changeable one which is called as generalized one-time-one-algorithm. It can be illuminated that the block cryptosystem which uses the P-box based on chaotic algorithm and two modules structure could effectively resist differential attacks and brute-force (exhaustive search) attacks of DES, by programming the system.
Chaotic cryptography Block cryptosystem P-box
Geng Zhao Jin-Qing Fang Hui Fan Zong-Ke Tong
Beijing Electronic Science and Technology Institute, Beijing, China, 100070 China Institute of Atom Energy, Beijing, China, 102413 Beijing Electronic Science and Technology Institute, Beijing, China, 100070 Xidian University, Xian
国际会议
第四届亚太地区混沌控制与同步会议(The Fourth Asia-Pacific Workshop on Chaos Control and Synchronization)
哈尔滨
英文
174-182
2007-08-24（万方平台首次上网日期，不代表论文的发表时间）