Space-randomization-based fault attacking resisting method applicable to reconfigurable array framework

Abstract

The invention relates to a space-randomization-based fault attacking resisting method applicable to a reconfigurable array framework. The method comprises the following steps of (1) setting an application scenario of a password processor, wherein the application scenario comprises an encryption algorithm running inside the password processor, an oriented fault attack injection mode and a fault injection type; (2) under the set application scenario, analyzing and finding the executing step with sensitive spots from the encryption algorithm, and determining specific parameters adopted when the executing step with the sensitive spots is executed in a reconfigurable computational array; (3) according to the specific parameters adopted when the executing step with the sensitive spots is executed in the reconfigurable computational array, configuring the encryption algorithm executing step with the sensitive spots so that the sensitive spots can be distributed randomly on the space of the configurable computational array. According to the space-randomization-based fault attacking resisting method, a single fault attach can be resisted, dual-fault and multi-fault injection attacks can be resisted, and the attack resistance of an integrated circuit at the fault injection stage is effectively improved.

Description

Technical field [0001] The invention relates to an anti-fault attack method, in particular to an anti-fault attack method based on spatial randomization suitable for a reconfigurable array architecture, and belongs to the technical field of integrated circuit security. Background technique [0002] In today's society, science and technology are developing rapidly, life is becoming more and more informatized, digitized and networked, and the security of data is getting more and more attention. As a key component to ensure information security, the cryptographic processor has continuously improved its encryption algorithm to ensure the mathematical security of the cryptographic algorithm. However, the emergence and improvement of physical attack methods against the hardware itself have greatly challenged the security of cryptographic processors. Among them, fault injection attacks can artificially change the output ciphertext, which has strong controllability and has a great impact...

AI Technical Summary

Problems solved by technology

Although it is theoretically possible to resist double-fault or multiple-fault attacks by means of multiple redundant circuits, this will introduce significant performance, area and power consumption overhead, and with the increasing accuracy of faults, this will be an unsustainable Anti-attack method

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