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Randomness Evaluation and Hardware Implementation of Nonadditive CA-Based Stream Cipher

By Song-ju Kim and Ken Umeno


We shall review the cellular automaton (CA)-based pseudorandom-number generators (PRNGs), and show that one of these PRNGs can generate high-quality random numbers which can pass all of the statistical tests provided by the National Institute of Standards and Technology (NIST). A CA is suitable for hardware imple mentation. We demonstrate that the CA-based stream cipher, which is implemented in the field-programmable gate arrays (FPGA), has a high encryption speed in a real-time video encryption and decryption system

Topics: Pseudorandom-Number Generator, Cellular Automata, Statistical Test, FPGA Implementation, Real-time Encryption
Year: 2008
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