摘要
为了提高现有混沌保密通信系统的加解密速度和安全性,提出了一种新的即时同步流密码数字保密通信方案,在该方案中利用改进元胞自动机进行加密,并采用扩展密钥技术和置乱技术.数值模拟结果表明:该方案能产生随机性很好的流密码,并且具有较高的加解密速度和非常高的抗破译能力.
In order to enhance the encryption speed and secrecy of the current chaotic secure communication system,a scheme of digital secure communication based on the stream cipher produced by real-time synchronization is presented. A improved cellular automata is used for encryption in the secure communication scheme while the expanded key technology and confusion technology are adopted. Numerical results show that the secure communication scheme can produce good pseudo- randomness stream ciphers while it has very fast speeds of encryption and decryption and high anti-attack ability.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第8期5281-5287,共7页
Acta Physica Sinica
基金
国家自然科学基金(批准号:10765002)资助的课题~~
关键词
扩展密钥
保密通信
元胞自动机
the expanded key
secure communication
cellular automata
