Study on Secure Communication Systems Via Chaos Synchronization

基于混沌同步的安全通信系统研究

• 批准号: 06835021
• 负责人: ITOH Makoto
• 金额: $ 1.22万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06835021/
• 关键词: Chaos; Spread-Spectrum; Secure Communication; セキュリティ通信

In this research, we demonstrate how chaotic circuit can be used to implement a secure communication system and developed the secure communication methods.1. Accurate circuit elements are required to realize secure communication sysrems. However, this disadvantage is exploited by using the general impedance converters.2.Repeated chaotic modulations make the system more and more secure, and the spread spectrum communication is possible, since the transmitted sinal has a broad-band and noise-like spectrum.3.New chaotic noise reduction circuit for restoring the digital signal is proposed, and its effectiveness is examined. Some strange behaviors, for example, propagation delay of information signals are found at the transmission process.4.Unified approach to construct a rich variety of secure communication system is proposed.5.Quantization of information signals does not corrupt the information signal at the demodulation process. In order to transmit a signal within 1% errors, we needs 16 bits data.6.The secure communication system has a rich variety of encryption keys and the high sensitivity of synchronization versus parameter changes, and so the system is very secure.

在本研究中，我们展示了如何利用混沌电路来实现保密通信系统，并发展了保密通信方法.实现保密通信系统需要精确的电路元件。2.由于传输信号具有宽带、类噪声的频谱特性，多次混沌调制使系统的保密性越来越强，并使扩频通信成为可能。3.提出了一种新的混沌降噪电路，并对该电路的有效性进行了检验。在传输过程中发现了信息信号的传播延迟等奇异行为; 4.提出了构建丰富多样的保密通信系统的统一方法; 5.信息信号的量化在解调过程中不会破坏信息信号。为了在1%的误差内传输信号，我们需要16位数据。6.安全通信系统具有丰富的加密密钥种类和同步对参数变化的高度敏感性，因此系统非常安全。

项目成果

Makoto Itoh: "Signal Transmissiom through a Chain of Chua's Ciruits" Proc. of 1995 IEEE International Symposium on Circuits & Systems. Vol.2. 1005-1008 (1995)

Makoto Itoh：“通过蔡氏电路链进行信号传输”Proc。

Makoto Itoh: "Experimental Study of Forced Chua's Oscillator" Proc.of ECCTD'95 European Conference on Circuits Theory & Design. Vol.2. pp.1129-1132 (1995)

Makoto Itoh：“受迫蔡氏振荡器的实验研究”Proc.of ECTD95 欧洲电路理论会议

Makoto Itoh: "New Communication SYStems via Chaotic Synchronizations and Modulations" IEICE Trans. Fundamentals. Vol.E78-A. 285-290 (1995)

Makoto Itoh：“通过混沌同步和调制的新通信系统”IEICE Trans。

Makoto Itoh: "Communication systems via chaotic modulations" IEICE Trans.Fundamentals. Vol.E77-A. 1000-1006 (1994)

Makoto Itoh：“通过混沌调制的通信系统”IEICE Trans.Fundamentals。

Makoto Itoh: "Performance of Yamakawa´s chaotic chips and Chua´s circuits for secure communications" Proc.of 1994 IEEE International Symposium on Circuits & Systems. Vol.6. 105-108 (1994)

Makoto Itoh：“用于安全通信的 Yamakawa 混沌芯片和 Chua 电路的性能”Proc.of 1994 IEEE 国际电路与系统研讨会第 6 卷（1994 年）。