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Card application downloading method, system and device

A card application and application example technology, applied in the field of user cards, can solve the problems of card resource waste, slowness, out-of-step card recovery data, etc.

Active Publication Date: 2013-09-18
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to propose a method for downloading card applications, aiming at the problems of waste of card resources caused by power outages in the process of card application downloading in the prior art, state out of sync between the server and the card, and slow recovery of card data. The system and device can ensure that the use of the card will not be affected after a power outage occurs during the download and installation process of the card application, and improve the space utilization rate in the card and improve the download and installation performance of the card application

Method used

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  • Card application downloading method, system and device
  • Card application downloading method, system and device
  • Card application downloading method, system and device

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specific Embodiment approach 3

[0105] The third specific embodiment provides the process of card application downloading, that is, set application hidden files and application instance hidden files in the card, use hidden files to store application data, and use hidden files to store application instance data. Set multiple states during the download process, and implement a processing mechanism and a state machine conversion mechanism after a power outage occurs in each step, that is, the card judges whether a power outage occurs between states, and if a power outage occurs, clear the application hidden file or application instance Hidden files. In addition, when the application is downloaded, the integrity of the application data is verified by calculating and comparing the hash (Hash) of the application data.

[0106] In the card application download process, each card application itself and application instance data are stored in the form of files in the card, but in order to ensure the security that use...

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PUM

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Abstract

The invention discloses a card application downloading method, a card application downloading system and a card application downloading device. The method comprises the following steps of setting an application hidden file and an application example hidden file in a card, wherein the application hidden file is used for storing application data received in a card application downloading process, and the application example hidden file is used for storing downloaded application example data; setting not less than 2 states in the card application downloading process; and judging whether power is cut off or not between the states, and if the power is cut off, clearing the application hidden file or the application example hidden file. According to the technical scheme, influence on the use of the card after the power is cut off in card application downloading and installation processes can be avoided, the utilization rate of a space in the card can be increased, and the card application downloading and installation performance can be improved.

Description

technical field [0001] The invention relates to the technical field of user cards, in particular to a method, system and device for card application downloading. Background technique [0002] The one-card multi-application market continues to grow rapidly, and the types of applications are increasingly diversified, such as bank cards, bus cards, subway tickets, supermarket membership cards, campus cards, corporate access cards, canteen consumption cards, hotel room cards, venue tickets, etc. All can be concentrated in the security chip of a mobile phone or a SIM card (hereinafter collectively referred to as smart cards), and at the same time drive the demand for multi-industry cooperative card issuance. Multi-application cards have many designs and requirements in application management, card space management, application lifecycle control, secure communication mechanism, key security system, virtual machine technology, application API control, and application implementation...

Claims

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Application Information

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IPC IPC(8): G06F11/07G06K1/12
Inventor 李琳
Owner CHINA MOBILE COMM GRP CO LTD
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