Delay insensitive ternary CMOS logic for secure hardware

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Abstract

As digital circuit design continues to evolve due to progress of semiconductor processes well into the sub 100 nm range, clocked architectures face limitations in a number of cases where clockless asynchronous architectures generate less noise and produce less electro-magnetic interference (EMI). This paper develops the Delay-Insensitive Ternary Logic (DITL) asynchronous design paradigm that combines design aspects of similar dual-rail asynchronous paradigms and Boolean logic to create a single wire per bit, three voltage signaling and logic scheme. DITL is compared with other delay insensitive paradigms, such as Pre-Charge Half-Buffers (PCHB) and NULL Convention Logic (NCL) on which it is based. An application of DITL is discussed in designing secure digital circuits resistant to side channel attacks based on measurement of timing, power, and EMI signatures. A Secure DITL Adder circuit is designed at the transistor level, and several variance parameters are measured to validate the efficiency of DITL in resisting side channel attacks. The DITL design methodology is then applied to design a secure 8051 ALU.

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CITATION STYLE

APA

Nair, R. S. P., Smith, S. C., & Di, J. (2015). Delay insensitive ternary CMOS logic for secure hardware. Journal of Low Power Electronics and Applications, 5(3), 183–215. https://doi.org/10.3390/jlpea5030183

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