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Fingerprint authentication method and system and fingerprint template encrypting device

A fingerprint authentication and template technology, applied in digital data authentication, point-of-sale network systems, payment systems, etc., can solve the problem of fingerprint templates being tampered or forged

Active Publication Date: 2015-03-11
北京大唐智能卡技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above scheme stores the fingerprint template in the smart card in plain text, and the fingerprint template may be tampered or forged

Method used

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  • Fingerprint authentication method and system and fingerprint template encrypting device
  • Fingerprint authentication method and system and fingerprint template encrypting device
  • Fingerprint authentication method and system and fingerprint template encrypting device

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Embodiment Construction

[0070] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0071] figure 1 It is a flowchart of the fingerprint authentication method of the present invention, as figure 1 shown, including the following steps:

[0072] Step 100: The smart card processes the fingerprint feature data sent by the background system to generate a ciphertext template.

[0073] Specifically include: the smart card fills the fingerprint feature data sent by the background system into a plaintext template;

[0074] Obtain the chip serial number of the smart card; use the chip serial number of the smart card as a key to perform 3DES encryption on the plaint...

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PUM

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Abstract

The invention discloses fingerprint authentication method and system and a fingerprint template encrypting device. The method comprises the following steps: processing fingerprint characteristics data from a background system by a smart card to produce a ciphertext template; acquiring a chip serial number of the smart card by a POS machine according to the acquired identity of the smart card when verifying the validity of the identity authorization code of the smart card by the POS machine; performing double authorization according to the acquired chip serial number of the smart card and the smart card; acquiring the fingerprint characteristics data of a card holder by the POS machine after the passing the double authorization; scrambling the acquired fingerprint characteristics data and then sending to the smart card; recovering the received scrambled fingerprint characteristics data by the smart card; decrypting the ciphertext template; matching the decrypted ciphertext template and the recovered fingerprint characteristics data; returning the matching result to the POS machine. According to the technical scheme, the method has the advantages that the possibility that a fingerprint template is tampered or forged is reduced, and the safety of the fingerprint authorization system is improved.

Description

technical field [0001] The invention relates to communication smart card application technology, in particular to a fingerprint authentication method and system, and a fingerprint template encryption device. Background technique [0002] In the smart card-based fingerprint identification system, the fingerprint matching process is divided into two parts. The fingerprint POS machine collects the user's fingerprint image to extract the fingerprint feature data and transmits it to the fingerprint card (that is, a smart card with a fingerprint matching algorithm). The data extracted by the POS machine is matched with the fingerprint template stored in the card and the matching result is returned to the POS machine, and the POS machine performs the next step according to the returned result. [0003] In the above solution, the fingerprint template is stored in the smart card in the form of plain text, and the fingerprint template may be tampered with or forged. Contents of the ...

Claims

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Application Information

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IPC IPC(8): G06F21/32G06Q20/20G06Q20/34G06Q20/40
CPCG06F21/32G06Q20/20G06Q20/34G06Q20/40145
Inventor 石春光段文杰程已农
Owner 北京大唐智能卡技术有限公司
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