Credit card anti-theft method and system based on image sharing

Abstract

The invention provides a credit card anti-theft method and system based on image sharing. The system is composed of a bank-side identity recognition system and a merchant-side identity recognition system. The bank-side identity recognition system includes an image generation module, a reconstruction processing module and an automatic The identification module, the merchant-side identification system includes an image processing module connected to the reconstruction processing module and the automatic identification module, a signature input module and an image capture module both connected to the image processing module, and a display module connected to the automatic identification module. After the system preprocesses the image of the cardholder's signature, two shadow images are generated through image sharing, one is printed on the credit card, and the other is saved to the bank; The shadow image is reconstructed to restore the cardholder's signature image, and compare whether it matches the consumer's signature image. The invention protects the use safety of the credit card, has low realization cost and has strong practicability.

Description

technical field [0001] The invention relates to credit card security payment technology, in particular to a credit card anti-theft method and system based on image sharing. Background technique [0002] With the improvement of people's living standards and the rapid development of social economy, more and more consumers are keen to use credit cards for payment. At present, when consumers use credit cards to conduct transactions with merchants, domestic banks basically use two methods to ensure the safety of credit card consumption, but these methods still have certain security risks: [0003] (1) Dual authentication of ID card and credit card. This approach will cause the thief to have the opportunity to steal both at the same time, and go to the store for consumption, but the store and the bank do not have to bear any responsibility, and the consumer must bear all losses. [0004] (2) Double authentication of signature and password. While merchants use real-time communic...

AI Technical Summary

Problems solved by technology

[0008] (3) The cashier of the merchant is also a major security risk of this method

(m,n) Threshold image sharing is to divide the image into n shadow images. Only the shadow images equal to or more than m (m≤n) can be combined to restore the original image. Single or less than m shadows Graphics cannot get any information from the original image

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