Method, device and equipment for implementing ordered-pair test by using byte table method and storage medium

Abstract

The invention provides a method, a device, equipment for implementing an ordered-pair test by using a byte table method, and a storage medium, and the method comprises the following steps: a preprocessing table building step: building four tables T0, T1, T2 and T3, each table containing 2w+1 elements; an ordered-pair test step: input of testing comprising a sequence to be tested and a threshold value expressed in a byte form, and the output comprising a result that the ordered-pair test is passed or is not passed. The method and device for implementing the ordered-pair test using the byte table method, the equipment and the storage medium have the advantages that the byte data to be tested are directly processed, and the operation of performing bit conversion on the data in a traditional test method is avoided; bit frequency statistics is carried out based on a table look-up method, which has the following advantages: low calculation efficiency caused by frequency statistics by taking bits as units is avoided. According to the method, the calculated amount is greatly reduced, the real-time responsiveness of the information security protection facility of the information system is improved, and the stability and robustness of the information system are enhanced from the side.

Description

technical field [0001] The present invention specifically relates to a method, device, equipment and storage medium for realizing sequence-even checking using the byte table method. Background technique [0002] With the development of information systems towards networking and intelligence, information system security incidents occur frequently. In order to enhance the security of information systems, a large number of targeted security protection products have been developed, such as VPN, security gateway, encryption machine, host security Protection, vertical isolation devices, digital certificate authentication systems, etc., as the basic components of most security products, randomness generators are integrated into these products. Product Random Number Testing Requirements", the quality of random numbers generated by these random number generators needs to be carefully tested. [0003] The sequence-even test is one of the most basic and important random number quality...

AI Technical Summary

Problems solved by technology

[0009] 1) In the security protection products of the information system, the data waiting to be checked is usually stored in bytes, while the traditional method adopts a bit-based processing method, that is, the data to be checked is processed bit by bit, and the stored The byte data is converted into a bit sequence, which increases the complexity and flow of processing

[0010] 2) Separately count the frequency of 2-bit sequence even (i, j) and the frequency of 1-bit sequence, which increases the calculation amount of the statistical process, and does not consider the internal relationship between the two

[0011] The traditional method adopts a bit-based processing method, which will seriously reduce the processing efficiency. The data processing capability of the security protection products of the information system is limited, and the low efficiency of the sequence and even inspection will seriously affect the stability and real-time performance of industrial control equipment. Hidden dangers in the healthy operation of the system

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