| 一种改进的数字混沌编码器 |
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| 引用本文： | 肖利丽,何世彪,田 东,吴永彬. 一种改进的数字混沌编码器[J]. 电讯技术, 2011, 51(4): 69-74. DOI: 10.3969/j.issn.1001-893x.2011.04.015 |
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| 作者姓名： | 肖利丽 何世彪 田 东 吴永彬 |
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| 作者单位： | 重庆通信学院，重庆 400035;重庆通信学院，重庆 400035;重庆通信学院，重庆 400035;重庆通信学院，重庆 400035 |
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| 基金项目： | 重庆市科委自然科学基金资助项目（2007ba2017） |
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| 摘 要： | 针对解码器在解码前不需要初始化,攻击者容易重构出解码器结构这一缺陷,提出了一种新的编解码方法.改进后的解码器只有当编、解码器的初始状态相同时,解码器才能正确地恢复出原始信息序列.仿真结果表明,改进后的混沌编解码器结构比原结构具有更好的保密性能.
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| 关 键 词： | 保密通信 混沌编码 数字滤波器 |
A Novel Digital Chaotic Encoder |
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| XIAO Li-li,HE Shi-biao,TIAN Dong and WU Yong-bin. A Novel Digital Chaotic Encoder[J]. Telecommunication Engineering, 2011, 51(4): 69-74. DOI: 10.3969/j.issn.1001-893x.2011.04.015 |
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| Authors: | XIAO Li-li HE Shi-biao TIAN Dong WU Yong-bin |
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| Affiliation: | Department of Communication and Information System, Chongqing Communication Institute,Chongqing 400035, China;Department of Communication and Information System, Chongqing Communication Institute,Chongqing 400035, China;Department of Communication and Information System, Chongqing Communication Institute,Chongqing 400035, China;Department of Communication and Information System, Chongqing Communication Institute,Chongqing 400035, China |
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| Abstract: | Aiming at the shortcoming that initial value is not required before decoding of the decoder, an improved en decoder is proposed. To restore the original signal exactly, the state of the decoder must be initialized to that of the encoder. Simulation results show that the new en decoder possesses much better security performance compared with original chaotic en decoder. |
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| Keywords: | secure communication chaos code digital filter |
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