一个实用的时空混沌流加密系统  

An Applied Spatiotemporal Chaotic Stream Cipher Systems

作　　者：焦健[1] 尹汝明[1] 郭晶[1] 袁坚[1] 杜文[1] 山秀明[1] 

机构地区：[1]清华大学电子工程系,100084

出　　处：《微计算机信息》2008年第9期6-7,14,共3页Control & Automation

基　　金：国家自然科学基金60172023<时空混沌CD-MA通信理论与关键技术研究>资助

摘　　要：本文构建了一个实用性很强的可扩展时空混沌流扩频保密应用系统。系统具有可扩展性强,支持多种应用,算法具备可配置性,支持混沌序列驱动同步与自同步方式等特点,而且支持扩频加密方式,在安全性、加解密速度、实用性上达到了良好的统一。文章给出了语音加密的结果,密文数据在时域和频域都显示了良好的伪随机性。本文还首次在应用系统中使用了帐篷映射代替Logistic映射。An applied spatiotemporal chaotic stream cipher systems, which is easy to extend not only for new applications but also for the improvement of arithmetic, is constructed in this paper. Core arithmetic is configurable to supply drivensync and selfsync, and the spread spectrum is also supplied. The system got a good balance in security, speed and practicability. In voice cryption test, the results in both time domain and frequency domain show good randomness. In addition, this paper use Tent Map instead of Lo...

关 键 词：时空混沌 流加密 可扩展应用系统 语音加密传输 帐篷映射 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]