Anti-differential power attack ternary counter based on sense amplification logic

Abstract

The invention discloses an anti-differential power attack ternary counter based on sense amplification logic, characterized by comprising a binary logic switching circuit and a sense amplification logic switching circuit, wherein the sense amplification logic switching circuit is provided with a current compensation circuit; the binary logic switching circuit is composed of a first D flip-flop, a second D flip-flop, an NAND gate and an XNOR gate; the sense amplification logic switching circuit is composed of a first PMOS (P-channel Metal Oxide Semiconductor) FET (Field Effect Transistor), a second PMOS FET, a third PMOS FET, a first NMOS (N-channel Metal Oxide Semiconductor) FET, a second NMOS FET, a third NMOS FET and a fourth NMOS FET; and a first signal output end and a second signal output end of the sense amplification logic switching circuit are connected in parallel with the current compensation circuit. The invention has the advantages that the circuit of the ternary counter has the characteristic of constant power consumption, the ternary counter has good anti-differential power attack effect, the complexity and cost of wire connection among circuits are greatly reduced, and the reliability of the circuits is improved.

Description

technical field [0001] The invention relates to a three-value counter, in particular to a three-value counter which is based on sensitive amplification logic and resists differential energy attack. Background technique [0002] Since Kocher, the American Institute of Cryptography, proposed the concept of side channel attacks in 1998, [1] , as a hot research direction, has attracted extensive attention in various fields. Traditional cryptographic attacks use mathematical analysis methods to reveal the weaknesses of encryption algorithms. This requires the attacker to have considerable attainments in cryptanalysis and encryption algorithms. Side-channel attacks only use some marginal information, such as power consumption, execution time, output and input behavior during failures, radiation, power spikes, and other information to attack encryption chips, and it does not require attackers to be proficient in cryptanalysis and encryption algorithms. This poses a great threat ...

AI Technical Summary

Problems solved by technology

In the existing literature, there are circuit structures against differential energy attacks, such as SABL (Sense Amplifier Based Logic) circuits, WDDL (Wave Dynamic Differential Logic) circuits, etc., but these circuits consume a lot of power and are The information density contained in the circuit is reduced by 50%

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