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Java card peripheral access method and Java card virtual machine

An access method and a virtual machine technology, which are applied in the field of Java Card peripheral access methods and Java Card virtual machines, can solve problems such as product instability and long development cycle, and achieve improved product stability, reduced development cycle, and improved scalability. sexual effect

Active Publication Date: 2018-09-28
SHENZHEN EXCELSECU DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when extending peripheral functions in the prior art, it is usually necessary to modify the Java Card virtual machine so that the Java Card virtual machine supports functions that meet specific customer needs, but modifying the Java Card virtual machine usually leads to long development cycles and unstable products. question

Method used

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  • Java card peripheral access method and Java card virtual machine
  • Java card peripheral access method and Java card virtual machine
  • Java card peripheral access method and Java card virtual machine

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Embodiment Construction

[0017] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0018] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

[0019] It should also be und...

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Abstract

The invention is suitable for the technical field of Java cards, and provides a Java card peripheral access method and a Java card virtual machine. The method comprises the steps of organizing corresponding peripheral protocol data when a Java card Applet needs to access a peripheral; calling a peripheral interface data unvarnished transmission API provided by the Java card virtual machine to transmit the peripheral protocol data to the Java card virtual machine; and sending the peripheral protocol data to the peripheral through a corresponding peripheral interface by the Java card virtual machine. Through the method, the expandability of the Java card virtual machine can be improved; the development cycle of a Java card can be shortened; and the product stability can be improved.

Description

technical field [0001] The invention belongs to the technical field of Java cards, in particular to a Java card peripheral access method and a Java card virtual machine. Background technique [0002] Java Card is a CPU smart card that can run Java programs. In order to meet customer needs, the Java Card usually needs to expand peripheral functions, such as adding a display screen to display transaction information, adding a keyboard to receive user input information, and so on. However, when extending peripheral functions in the prior art, it is usually necessary to modify the Java Card virtual machine so that the Java Card virtual machine supports functions that meet specific customer needs, but modifying the Java Card virtual machine usually leads to long development cycles and unstable products. question. [0003] Therefore, it is necessary to propose a new technical solution to solve the above technical problems. Contents of the invention [0004] In view of this, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/455
CPCG06F9/45558G06F2009/45579G06F9/45504
Inventor 陈柳章
Owner SHENZHEN EXCELSECU DATA TECH
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