臺灣博碩士論文加值系統

本論文探討後勤映射混沌系統之辨識方法、同步控制設計，及結合密碼學於通訊安全之應用。首先以遺傳演算法與類神經網路辨識混沌系統，經由複製、交配、突變等演化方式，搜尋類神經網路之全域最佳權重與偏壓值，降低混沌系統辨識與預測誤差。接著，分別以模糊邏輯與適應性類神經模糊推論設計後勤映射混沌同步系統，並應用於語音訊號與圖像加密
。最後以國際數據加密演算法結合混沌同步設計，架構後勤映射密碼系統
。經由電腦模擬顯示，基於密碼學與混沌遮蔽之加密系統，可確保通訊資料之安全性。

Identification of logistic map, design of synchronization control, and applications of communication security with cryptography, are presented in this thesis. To reduce the errors of identification and prediction, genetic algorithms and neural networks are applied to search the globally optimal weight and bias by means of reproduction, crossover, and mutation. Then, using fuzzy logic and adaptive network-based fuzzy inference system, the chaos synchronization of logistic map is designed and applied to the encryption of voice and picture. With the help of IDEA and chaos synchronization, the encrypted logistic map is developed. Computer simulations demonstrate the proposed scheme can make sure the security of communications.

中文摘要
英文摘要
誌謝
目錄
圖目錄
表目錄
第一章 緒論
1.1 研究背景及動機
1.2 論文架構
第二章 混沌系統的辨識
2.1 混沌系統
2.2 類神經網路和遺傳演算法
2.2.1 倒傳遞類神經網路
2.2.2 遺傳演算法
2.2.3 遺傳演算法演化類神經網路
2.3 電腦模擬
2.4 結論
第三章 混沌系統同步控制
3.1 後勤映射同步系統設計
3.2 後勤映射之模糊同步設計
3.2.1 模糊控制
3.2.2 適應性類神經模糊推論系統
3.2.3 後勤映射之模糊同步
3.3 電腦模擬
3.3.1 混沌同步控制
3.3.2 混沌通訊安全
3.4 結論
第四章 國際數據加密演算法
4.1 近代密碼學簡述
4.2 國際數據加密演算法
4.2.1 設計原理
4.2.2 IDEA加密程序
4.2.3 次密鑰產生方式
4.2.4 IDEA解密程序
4.3 電腦模擬
4.4 結論
第五章 通訊安全
5.1 後勤映射密碼系統設計
5.1.1 混沌通訊安全
5.1.2 後勤映射密碼系統設計
5.2 電腦模擬
5.2.1 替換加密法應用於後勤映射混沌加密
5.2.2 國際數據加密演算法應用於後勤映射混沌加密
5.2.3 雜訊分析
5.3 結論
第六章 結論與未來研究方向
6.1 結論
6.2 未來研究方向
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