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Information security device of micro security digital interface and communication method

A safe digital and information security technology, applied in the field of information security, can solve the problems of unpublished reports of information security equipment, etc., and achieve the effect of small appearance, powerful security function, flexibility and convenience

Inactive Publication Date: 2012-10-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, there are no publicly reported information security devices for tiny secure digital interfaces applied on handheld mobile devices

Method used

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  • Information security device of micro security digital interface and communication method
  • Information security device of micro security digital interface and communication method
  • Information security device of micro security digital interface and communication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] From figure 1 It can be seen that the information security device 1 of the miniature safety digital interface is composed of two parts: the miniature safety digital interface chip 4 and the safety function processor 5 . The information security device 1 of the micro-safety digital interface communicates with the micro-safety digital interface host 2 through the micro-safety digital interface 3 .

[0027] One end of the miniature secure digital interface chip 4 extends 11 contact pins, which are data pins DATA3, DATA2, DATA1, DATAO, control pin CMD, clock pin CLK, power pin VCC, two ground pins VSS and The 11 connection pins of the 2 expansion pins NC are in contact with the 11 shrapnel corresponding to the 2 slots of the micro-safety digital interface mainframe to realize mechanical and electrical connection.

[0028] The basic communication protocol between the miniature safety digital interface host 2 and the miniature safety digital interface chip 4 adopts the stand...

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PUM

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Abstract

The invention discloses information safety equipment with a miniature safety digital interface and an information safety equipment communication method which conforms to the miniature safety digital interface prescribed by the invention. The invention transfers functions, such as security certificate, encryption and decryption, digital signature, and the like in the information safety equipment (1) with the miniature safety digital interface. The equipment has small whole shape, supports plug-and-play function, and has powerful function and safety as well as simple and convenient communication method. The information safety equipment (1) with the miniature safety digital interface consists of a miniature safety digital interface chip (4) and a safety function processor (5). The miniature safety digital interface chip (4) is connected with a safety digital interface host machine (2) in accordance with the mechanical feature, the electrical character and the communication protocol of the miniature safety digital interface (3). In addition, the invention widens an RS232 serial port or an SPI interface which is connected with the safety function processor (5).

Description

technical field [0001] The invention relates to an information security device based on a miniature security digital (miniSD, mini Security Digital) interface and a communication method thereof, belonging to the field of information security. Background technique [0002] With the development of mobile communication network technology, the security and confidentiality of mobile data is particularly important. More and more personal and commercial sensitive information are stored on mobile handheld devices (such as mobile phones, PDAs, palmtop computers). At the same time, mobile handheld devices also need to communicate with other devices or central servers through wireless air. Among them, how to effectively and safely protect the security information of users and systems is an urgent problem that needs to be solved. [0003] With the continuous improvement of the manufacturing process and integration level of handheld mobile devices, the external interfaces on the handhel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/02H04B1/38H04L9/00
Inventor 陈立全胡爱群
Owner SOUTHEAST UNIV
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