Cryptoanalysis of CPSS Cryptosystem

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Azadi Yazdi, Azin | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41797 (02)
University: Sharif University of Technology
Department: Mathematical Sciences
Advisor(s): Daneshgar, Amir
Abstract:
In this thesis we will present some aspects of discrete chaos and their usage in cryptography.We discuss a couple of regular attacks to chaotic cryptosystems. We will use this information to analyze the chaotic part of the CPSS cryptosystem(Daneshgar, Farzad, Khadem) and will show that the system has weak keys. Finally, we will show that how these weak keys can be generated in an algorithmic way
Keywords:
Chaos Theory ; Cryptography ; Discrete Chaos