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A Flip-Flop for the DPA Resistant Three-Phase Dual-Rail Pre-Charge Logic Family

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4 Author(s)
Bucci, M. ; Infineon Technol. AG, Graz, Austria ; Giancane, L. ; Luzzi, R. ; Trifiletti, A.

This paper investigates the design of a data flip-flop compatible with the three-phase dual-rail pre-charge logic (TDPL) family. TDPL is a differential power analysis (DPA) resistant dual-rail logic style whose power consumption is insensitive to unbalanced load conditions, based on a three phase operation where, in order to obtain a constant energy consumption, an additional discharge phase is performed after pre-charge and evaluation. In this work, the TDPL basic gates operation is shortly summarized and the TDPL flip-flop implementation is reported. A part of an encryption algorithm is used as case a study to prove the effectiveness of the proposed circuit. Simulation results in a 65 nm CMOS process show an improvement in the energy consumption balancing in excess of 10 times with respect to the state of the art.

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Very Large Scale Integration (VLSI) Systems, IEEE Transactions on  (Volume:20 ,  Issue: 11 )