AES (advanced encryption standard) algorithm circuit oriented method for testing differential power attack

Abstract

The invention discloses an AES (advanced encryption standard) algorithm circuit oriented method for testing differential power attack. An AES algorithm is a widely applied grouping symmetric cryptographic algorithm. The AES algorithm circuit oriented method is used for acquiring and processing power samples for tests for the differential power attack in a design stage of an AES cryptographic algorithm circuit and includes steps (1), carrying out functional simulation and acquiring power samples; (2), preprocessing the power samples; (3), acquiring hypothetical power samples; (4), computing correlation coefficients and analyzing attack results. The AES algorithm circuit oriented method has the advantages that only varied power points are sampled, so that large quantities of power sample data can be omitted, power attack computational complexity can be greatly reduced, the assess effectiveness and the speed are high, more importantly, the tests for the differential power attack can be carried out in the design stage of the circuit, the attack resistance of the cryptographic circuit can be assessed in advance, and tape-out risks of the AES circuit can be reduced.

Description

Technical field [0001] The invention relates to the field of information security of integrated circuits, in particular to a differential power consumption attack test method for AES algorithm circuits. Background technique [0002] In the 21st century, the rapid development of science and technology, social informatization has become the general trend, life has become informatized, digitized and networked, and people's dependence on information is increasing. With the development of computer, network, communication technology and integrated circuit technology, security chips are widely used in automatic teller machines (Automatic Teller Machine, ATM) bank cards, smart cards for access control systems in residential or company environments, and voice encryption chips in mobile phones In various environments that require information security. Because the circuit structure inside the integrated circuit is very complicated, it also has the characteristics of good sealing, not easy ...

AI Technical Summary

Problems solved by technology

Some scholars use the simulation attack method designed by mathematical modeling. Although the attack is efficient and the cost is low, its accuracy is very low, the reliability of the result is not high, and it is not suitable for verifying the anti-power analysis characteristics of the cryptographic algorithm circuit.

[0007] To sum up, in the prior art, the power consumption attack method for cryptographic algorithm circuits implemented by FPGA and ASIC has the defects of high cost, difficult implementation, and long verification cycle, and the simulation attack method designed by mathematical modeling has low precision. , the defect of poor reliability

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