Attack defense method and device for data query system and storage medium

Abstract

The invention provides an attack defense method and device for a data query system and a storage medium. Wherein after a query request is received, the structure of the index in the query request can be firstly judged, and if the structure of the index meets a set structure requirement, whether the index is an effective index or not is judged according to information contained in the structure. Otherwise, whether the index is a valid index or not is judged according to the stock index stored in the filter. According to the mode of verifying the validity of the index based on the structure information of the index and the filter, not only can the index meeting the set structure requirement be filtered and intercepted, but also the index with the stock not meeting the set structure requirement can be filtered and intercepted. On one hand, the query process of the stock index which does not follow the set format requirement in the data query system can be well compatible, and the probability that the data query system is maliciously attacked is reduced. On the other hand, the invalid index judgment efficiency can be improved based on the filter, and the attack defense cost of the data query system is reduced.

Description

technical field [0001] The present application relates to the technical field of data query systems, and in particular to an attack defense method, device and storage medium for a data query system. Background technique [0002] The query system usually consists of an application service and a data query system, wherein the data query system can store information mapping relationships between query identifiers and information. For example, the correspondence between order number and order information, the correspondence between card number and asset information, etc. Application service is used to provide query operation entry. When a user needs to query certain information, the query index can be provided through the application service of the query system. If the information corresponding to the index exists in the data query system, the query result is returned. [0003] Usually, the queried index is often valid, but there may also be cases where the queried index does...

AI Technical Summary

Problems solved by technology

[0003] Usually, the index being queried is often valid, but there may also be cases where the index being queried does not actually exist, for example, the index being queried is an invalid order number or an invalid card number

When the query system receives a large number of invalid indexes, it will cause a large query pressure on the query system, and even cause the query system to be unavailable

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