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Method for generating secrete key of smart card

A smart card, key technology, applied in the direction of using coded identification card or credit card activation, payment involving neutral parties, coin-free or similar appliances, etc., can solve the problem of inconvenient key update, etc. updated effect

Inactive Publication Date: 2010-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of fixed decentralized parameters, the generation method of the smart card security domain key in the prior art is inconvenient to update (ie regenerate) the key

Method used

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  • Method for generating secrete key of smart card
  • Method for generating secrete key of smart card
  • Method for generating secrete key of smart card

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The basic idea of ​​the present invention is: when generating the key of the security domain of the smart card, generate a new random number for the security domain of the smart card, use the random number as a parameter to generate a new distributed parameter using a secure hash algorithm, and use the distributed parameter and the seed key to generate a new smart card security domain key.

[0044]Before further explaining the key generation method of the smart card security domain of the present invention, the application environment of the method of the present invention, that is, the basic concept of the key generation and updating system of the smart card security domain is briefly described.

[0045] The key generation and update system of the smart card security domain, including: smart card, management platform, and security agency. in:

[0046] Smart cards can be installed on mobile terminals that support NFC technology and support GlobalPlatform Card Specifica...

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Abstract

The invention discloses a method for generating a secrete key of a smart card. When the secrete key of a security domain of the smart card is generated, a management platform generates random numbers for the security domain of the smart card and generates the distributed parameters of the security domain of the smart card by using the random numbers; and the distributed parameters and seed keys of the management platform are used as the parameters of a decentralized algorithm, so the secrete key of the security domain of the smart card is generated by using the decentralized algorithm. The method for generating the secrete key of the smart card solves the problem that the secrete key of the security domain of the smart card is difficult to update.

Description

technical field [0001] The invention relates to a method for generating a smart card key. Background technique [0002] IC (Integrate Circuit, integrated circuit) cards, especially non-contact IC cards, have been widely used in fields such as public transport, access control, and small-amount electronic payment after more than ten years of development. At the same time, mobile phones have been widely popularized through years of rapid development, bringing great convenience to people's work and life. At present, the functions of mobile phones are becoming more and more powerful, and there is a trend of integrating more functions. Combining mobile phones with non-contact IC card technology and applying them to the field of electronic payment will further expand the scope of use of mobile phones and bring new benefits to people's lives. It is convenient and has broad application prospects. [0003] Near Field Communication (NFC) technology is a short-range wireless communica...

Claims

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Application Information

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IPC IPC(8): G07F7/10H04L9/00
CPCG06Q20/388G07F7/1016G06Q20/3278G06Q20/341G07F7/1008G06Q20/3823G06Q20/02G06Q20/3574G06Q20/3829G06Q20/353H04L9/0891H04L9/0869G06Q20/3576H04L9/0866H04L2209/805
Inventor 余万涛马景旺贾倩
Owner ZTE CORP
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