• The Journal of the Korea Contents Association
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• v.8 no.4
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• pp.86-91
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• 2008

To present the design procedure of discretized 8-bit tent map executing the transformation of tent function which is one of the chaotic functions, first, the truth table of discretized tent map was written, and then according to the simplified Boolean algebra equations obtained from the truth table, the discretized map is implemented with the exclusive logic gate as a real hardware. The discretized tent map circuit which provides the feedback circuit for generating the period-8 states relevant to the 8-bit finite precision is also designed and presented in this paper. Furthermore, it might be used stream cipher system with a new key-stream circuit for generate of chaotic binary sequence.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1935_1936
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• 2009

기울기 S=2인 톱니맵 $S_2$(x) 와 텐트맵 $S_2$(x), 두 혼돈맵들을 차례로 연결시킨 합성맵을 사용하여 합성상태머신을 설계하였다. 혼돈맵의 합성논리를 이용하여 설계한 합성상태머신에서 발생하는 난수적인 상태들을 그래프적으로 보였으며, 난수적인 상태들의 주기는 정밀도와 이산화된 진리표에 따른 길이를 발생시켰다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.12
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• pp.3688-3693
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• 2009

In this paper the design methode of a separated composition state machine based on the compositive map with connecting two chaotic maps together - sawtooth map $S_2(x)$ and tent map $T_2(x)$ and the result of that is proposed. this paper gives a graph of the chaotic states generated by the composition state machine using the compositive logic of two different chaotic maps - sawtooth map and tent map and also shows that the period of pseudo-random states has the length according to the precision of the discreet truth table.