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Bidirectional verification method and device of intelligent card and acceptance terminal

A technology for accepting terminals and smart cards, applied to user identity/authority verification, and key distribution, which can solve problems such as difficult management, complex deployment, and high cost of key distribution, and achieve the effect of reducing hardware costs

Inactive Publication Date: 2015-09-16
CHINA CONSTRUCTION BANK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a two-way verification method and device for a smart card and an accepting terminal to overcome the defects of high key distribution cost, complicated deployment and difficult management in the existing method

Method used

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  • Bidirectional verification method and device of intelligent card and acceptance terminal
  • Bidirectional verification method and device of intelligent card and acceptance terminal
  • Bidirectional verification method and device of intelligent card and acceptance terminal

Examples

Experimental program
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specific Embodiment approach

[0166] As a specific embodiment of the present invention, the second verification module 82 includes:

[0167] The second obtaining module 821 is used to obtain the identification information of the smart card;

[0168] The fourth sending module 822 is configured to send the identification information to the key distribution dynamic library, so that the key distribution dynamic library can distribute the internal authentication key of the smart card from the master key according to the identification information and the distribution algorithm. key;

[0169] The second processing module 823 is configured to generate a second random number after the acceptance terminal receives the internal authentication key, assemble the second random number into an internal authentication instruction, and send the internal authentication instruction to the smart card;

[0170] The second calculation module 824 is configured to use the internal authentication key stored in the smart card itse...

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Abstract

The invention provides a bidirectional verification method of an intelligent card and an acceptance terminal, and a bidirectional verification device of the intelligent card and the acceptance terminal. The method comprises the following steps: the intelligent card verifies whether the acceptance terminal is legal by utilizing an external authentication secret key, and the acceptance terminal verifies whether the intelligent card is true by utilizing an internal authentication secret key; the external authentication secret key and the internal authentication secret key are dispersed from a main secret key by a secret key dispersion dynamic library according to identification information of the intelligent card and a dispersion algorithm; the secret key dispersion dynamic library is distributed to the acceptance terminal or a server of the acceptance terminal in advance through a network, and the main secret key is stored in the secret key dispersion dynamic library; and the secret key dispersion dynamic library can protect the main secret key form being exposed. The method and the device can guarantee safety of the main secret key and be in favor of reducing hardware cost, and updating management of the main secret key is convenient.

Description

technical field [0001] The invention relates to the technical field of information security management, in particular to a bidirectional verification method and device for a smart card and an acceptance terminal. Background technique [0002] With the development of information integration technology, smart cards have brought great convenience to people's life and work. [0003] In order to ensure the security of smart card transactions, two-way verification is required between the smart card and the smart card acceptance terminal every time a transaction occurs, that is, the smart card verifies the legitimacy of the acceptance terminal, and the acceptance terminal verifies the authenticity of the smart card. Card sub-keys are usually used during mutual authentication between the smart card and the receiving terminal. In order to ensure the security of the key, it is preferable to distribute the card sub-key by means of key distribution. In this key distribution method, th...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L9/08H04L29/06
Inventor 董凌骏黄瑞雪
Owner CHINA CONSTRUCTION BANK
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