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A second-generation usb Key capable of dynamically loading applications is compatible with the Java Card platform method

A technology of USB interface and font library, which is applied in the field of the second-generation USBKey compatible JavaCard platform, which can solve the problems affecting the implementation and stability of instructions, and the inability of NativeCOS to dynamically update applications, etc.

Active Publication Date: 2019-02-05
BEIJING HUADA ZHIBAO ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the disadvantage of Native COS is that it cannot dynamically update applications. If you need to update applications or instructions, you need to modify the COS source code, which may affect the implementation and stability of instructions in other applications, and you need to re-test and re-certify the overall

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  • A second-generation usb Key capable of dynamically loading applications is compatible with the Java Card platform method

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0017] The second-generation USB Key capable of dynamically loading applications provided by the present invention will be further described below in conjunction with the accompanying drawings.

[0018] figure 1 It is a schematic structural diagram of a second-generation USB Key in a preferred embodiment of the present invention. ...

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Abstract

The present invention provides a method used by a second generation USB Key capable of dynamically loading an application to be compatible with a Java Card platform. According to the method, a Native COS is replaced with a COS supporting a Java Card on the basis of a conventional second generation USB Key, so as to support dynamic update of applications. Because a Java Card platform has no defined external interfaces, an extended API needs to be provided for upper-layer application development personnel to use peripherals such as an LCD and key, and a source code of an operating system of an intelligent card does not need to be modified.

Description

technical field [0001] The invention relates to the field of USB Keys, in particular to a second-generation USB Key compatible Java Card platform method capable of dynamically loading applications. Background technique [0002] Different from ordinary storage device U disk, USB Key is an intelligent storage device used for encryption and decryption, identification, and a tool for digital signature and digital authentication. As an electronic key for network user identification and data protection, USBKey is an intelligent encrypted storage device with a built-in micro smart card processor and a certain storage space, which can be used to store the user's private key and digital certificate. USB Key adopts asymmetric key algorithm to encrypt, decrypt and digitally sign data to realize user identity authentication and ensure the confidentiality, authenticity, integrity and non-repudiation of online transactions. [0003] The security of the USB Key is reflected in the physica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/34G06F8/65
Inventor 李静进
Owner BEIJING HUADA ZHIBAO ELECTRONICS SYST
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