A card number determination method, device, equipment and storage medium

CN116091194BActive Publication Date: 2026-07-03AGRICULTURAL BANK OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AGRICULTURAL BANK OF CHINA
Filing Date
2023-03-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies for de-identifying bank card numbers only rely on mapping and replacing the first and last digits. This fails to meet the business rule verification requirements of bank card numbers during software development and testing, resulting in deficiencies in data security and business rule consistency after de-identification.

Method used

By obtaining the attribute information of the original card number, including business rules, original sequence value, and original verification value, the card number is desensitized according to the preset desensitization rules, the target sequence value and verification value are determined, and the target card number is generated in combination with the business rules, ensuring that the desensitized card number is consistent with data security and business rules.

Benefits of technology

This system enables the de-identification of multiple bank card numbers while retaining the original card numbers' business rule attributes. It satisfies both data security and business rule verification requirements, ensuring the effective application of de-identified card numbers in simulated transaction tests.

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Abstract

The application discloses a card number determination method, comprising: obtaining an original card number and corresponding attribute information, wherein the attribute information comprises a business rule, an original sequence value and an original check value of the corresponding original card number; desensitizing the original sequence value according to a preset desensitization rule to determine a target sequence value; checking the business rule and the target sequence value to determine a target check value; and determining a target card number according to the business rule, the target sequence value and the target check value. The above technical solution supports card number desensitization of various bank card types, can simultaneously desensitize multiple original card numbers to obtain corresponding target card numbers, and can meet the check demand of the business rule under the premise of ensuring the data security of the target card number.
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