New key-stream generation scheme based on Henon chaotic system  

New key-stream generation scheme based on Hénon chaotic system

作　　者：HUANG Fang-jun ZHAO Yu-qian 

机构地区：[1]School of Information Science and Technology, Sun Yat-Sen University, Guangzhou 510006, China [2]School of Geosciences and Info-Physics, Central South University, Changsha 410083, China

出　　处：《Journal of Central South University》2013年第7期1904-1908,共5页中南大学学报（英文版）

基　　金：Foundation item： Proj ects（61172184, 61173147） supported by the National Natural Science Foundation of China; Project（12JJ6062） supported by Natural Science Foundation of Hunan Province, China; Project（121gpy31） supported by the Fundamental Research Funds for the Central Universities of China; Project supported by the State Key Laboratory of Information Security （Institute of Software, Chinese Academy of Sciences）, China

摘　　要：As known to all that Henon chaotic system is not appropriate for generating the key-streams because it has non-uniformly distributed output signal, a new key-stream generation scheme based on Henon chaotic system is presented. In order to get the key-streams with good statistics and long enough cycle length, a specific method for dividing the enon attractor into numerous non-overlapping sub-regions, and a new one-to-one mapping strategy between the divided sub-regions and elements of dynamically generated matrix consisting of O＇s and l＇s are proposed. Experimental results demonstrate that the generated key-streams are with long enough cycle length and very sensitive to the initial values and secret keys. For example, key-streams with the cycle length of 10^32 can easily be obtained. Moreover, even if the fluctuation to the initial values or secret keys is as small as 10^- 14 uncorrelated key-streams will be generated. Experimental results also demonstrate that the generated key-streams have good randomness and they can pass all the standard criteria specified in FIPS PUB 140^-2 with no less than 98%.As known to all that Hénon chaotic system is not appropriate for generating the key-streams because it has non-uniformly distributed output signal, a new key-stream generation scheme based on Hénon chaotic system is presented. In order to get the key-streams with good statistics and long enough cycle length, a specific method for dividing the Hénon attractor into numerous non-overlapping sub-regions, and a new one-to-one mapping strategy between the divided sub-regions and elements of dynamically generated matrix consisting of 0's and 1's are proposed. Experimental results demonstrate that the generated key-streams are with long enough cycle length and very sensitive to the initial values and secret keys. For example, key-streams with the cycle length of 10 32 can easily be obtained. Moreover, even if the fluctuation to the initial values or secret keys is as small as 10 14 , uncorrelated key-streams will be generated. Experimental results also demonstrate that the generated key-streams have good randomness and they can pass all the standard criteria specified in FIPS PUB 140-2 with no less than 98%.

关 键 词：chaotic system key-stream RANDOMNESS cycle length 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] O415.5[自动化与计算机技术—计算机科学与技术]