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Mass storing and managing method of smart card

A technology of massive data and management methods, applied in the direction of electrical digital data processing, special data processing applications, recording carriers used by machines, etc., to achieve the effects of reducing reading and writing, increasing operating speed, and avoiding waste of space

Active Publication Date: 2009-08-05
RDA MICROELECTRONICS SHANGHAICO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, there is no smart card that can realize the storage and management of massive data in terms of hardware and software.

Method used

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  • Mass storing and managing method of smart card
  • Mass storing and managing method of smart card
  • Mass storing and managing method of smart card

Examples

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. This specific embodiment is a method for storing and managing massive phonebook information by a smart card.

[0029] In order to realize this method, in terms of hardware, it is necessary to use a CPU with high performance and high speed as a central processing unit, and use a FLASH device with a capacity of M class as a data memory. The important high-performance processor can perform encryption and decryption processing and fast query of a large amount of data, providing the basic conditions for large-scale data management and query; large-capacity data storage can provide users with sufficient data storage space. like figure 1 As shown, the hardware platform for implementing the smart card of the present invention includes a central processing unit 110 , a data storage 120 and other hardware modules 130 . In the smart card 100 implemented ...

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Abstract

The invention relates to the design and application technology of smart cards in the field of microelectronics, in particular to a mass data storage and management method of smart cards. This method establishes a database with basic storage, query, comparison and sorting functions on the smart card. The basic structure of the database is two sets of linked lists. The first set only includes a main linked list. Form this linked list, and use each node in the linked list to save the basic information of each record and the starting position of the sub-linked list; the second set of linked lists—the number of sub-linked lists is the same as the number of records contained in the database, and all on these linked lists Each node is a "data block" with a fixed size, and the different attributes belonging to a record are stored in the sub-linked list according to the structure of "identity-length-value". The method can greatly expand the functions of the existing smart card by cooperating with the corresponding upgrading of the hardware, making it a new generation of data storage and management platform.

Description

technical field [0001] The invention relates to the design and application technology of smart cards in the field of microelectronics, in particular to a mass data storage and management method of smart cards. Background technique [0002] With the advancement of social development, people have higher and higher requirements for information security, and smart cards, as a special electronic device, have become more and more sensitive in modern society because of their excellent security and reliability. information carrier. At present, smart cards have been widely used in various fields such as mobile communications, banking, social security, public transportation, and municipal management, and are playing an increasingly important role in the entire social life. [0003] The reason why a smart card can become a carrier of sensitive information is that it integrates a CPU with computing functions and a data storage area with storage functions inside. Its structure is as fol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G06K19/07
Inventor 丁勇秦预赵文军
Owner RDA MICROELECTRONICS SHANGHAICO LTD
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