A Gaussian Sampling Circuit Against Simple Power Analysis Attack

Abstract

The invention discloses a Gaussian sampling circuit resistant to simple power consumption analysis attacks, comprising: a control module, a random number generation module, a binary comparison module, a first single-port RAM, a sampling result output module, and a power consumption information masking module; the control module uses The state transition and enabling of the control circuit; the random number generation module generates uniformly distributed random numbers through the shift register; the binary comparison module uses the binary search algorithm to locate the address of the random number in the distribution accumulation function table with Gaussian distribution; the sampling result The output module performs a modulo operation on the located address to form a sampling output; the power consumption information masking module generates random power consumption by binary searching the address of the random number in the pseudo-distribution cumulative function table. The circuit of the invention can effectively cover up the power consumption information of the sampling process, and realize the characteristic of resisting simple attack analysis of selected input.

Description

technical field [0001] The invention belongs to the field of information security algorithm circuit realization, and more specifically relates to a Gaussian sampling circuit resistant to simple power analysis attacks. Background technique [0002] With the development of quantum computing, the security of the traditional public key encryption system is threatened. The public key encryption system based on lattice theory has become a cryptographic system with great potential in the post-quantum era because of its anti-quantum attack, high encryption efficiency, and simple hardware implementation. [0003] In common cryptosystems based on lattice theory, errors satisfying discrete Gaussian distribution are used to conceal secret information. Therefore, the Gaussian sampling circuit is an important module that constitutes the hardware circuit of this kind of cryptographic system based on lattice theory. Although the lattice cryptography system can effectively resist the attac...

AI Technical Summary

Problems solved by technology

For Gaussian sampling circuits, the current research mainly focuses on resisting time analysis attacks, and there are few studies on resisting simple power analysis attacks. Therefore, the design and research of Gaussian sampling circuits with the ability to resist simple power analysis attacks is of great importance significance

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