A double-edge d flip-flop based on n-type sabl logic

Abstract

The invention discloses a double-edge D flip-flop based on N type SABL logic. The double-edge D flip-flop comprises a first transmission gate, a second transmission gate, a third transmission gate, a fourth transmission gate, a fifth transmission gate, a sixth transmission gate and two N type SABL logical units. The double-edge D flip-flop has the advantages that the two N type SABL logical units and the six transmission gates are adopted for designing the double-edge D flip-flop, in the Cadence environment, by the adoption of a TSMC 0.13-micrometer CMOS technology, analog simulation is performed on the double-edge D flip-flop based on the N type SABL logic, an analog result shows that a circuit has a correct logical function, by analyzing power consumption curves of the double-edge D flip-flop based on the N type SABL logic, it can be known that in every clock period, the power consumption curves of the double-edge D flip-flop are the same, power consumption is constant, and the double-edge D flip-flop has a power balance characteristic and achieves the characteristic of resisting to bypass attacks.

Description

technical field [0001] The invention relates to a D flip-flop, in particular to a double-edge D flip-flop based on N-type SABL logic. Background technique [0002] Differential Power Analysis (DPA) attack was proposed by Kocher et al. in 1998. It relies on the correlation between the power consumption of the encryption hardware and the data it processes and the operations it performs during the encryption process. By monitoring the hardware in the The power consumption curve during the encryption process uses statistical methods and the experience of the attacker to analyze the collected information, so as to obtain data related to encrypted information, which poses a major threat to the security of existing cryptographic modules. Power balance technology can fundamentally solve the problem of power consumption leaking password information, and it is the preferred technology for defending against DPA attacks in recent years. The power balance technology adopts Hamming exten...

AI Technical Summary

Problems solved by technology

In a single-edge trigger, the clock edge in one direction will become a redundant change, and its power consumption is redundant power consumption. Therefore, the power consumption of a single-edge trigger does not have balance characteristics, and SABL logic circuits cannot be directly used in traditional D flip-flop design

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