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Portable password device based on mobile terminal

A mobile terminal and cryptographic device technology, which is applied in the field of information security, can solve problems such as the uncommon use of cryptographic smart cards, and achieve cost-saving effects

Active Publication Date: 2014-11-12
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The password of the password smart card is the same as that of the USB Key, but it needs to use a special card reading device. Therefore, except for special occasions (such as social security card, medical insurance card, bank card), the password smart card is widely used in daily life and work. It is not common, and password smart cards have the same problems as USB Keys in the process of carrying and using

Method used

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  • Portable password device based on mobile terminal

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] To implement the solution of the present invention, the mobile terminal must have the capability of exchanging data with the computing device running the cryptographic application program through point-to-point communication. Below, take Android-based mobile terminals (including mobile phones, tablet computers) as mobile terminals implementing password functions, and PC computers (including desktop and portable PC computers) as computing devices that operate as password applications as examples to specific embodiments of the present invention. illustrate.

[0019] Most Android-based mobile terminals support USB (Universal Serial Bus) communication and external data exchange (point-to-point communication), while current PC computers (including desktop and portable PC computers) almost all support USB communication methods. Therefore, Android mobil...

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Abstract

The invention relates to a portable password device based on a mobile terminal. The password device comprises the mobile terminal, a password function program and a password module stub, wherein the mobile terminal has point-to-point communication capacity, the password function program runs in the mobile terminal and provides a password function, and the password module stub is located in a computing device which password application programs are in; the computing device which the password application programs are in has the capacity for data exchange with the mobile terminal through point-to-point communication; when one password application program calls the password function of the password module stub, the password module stub submits a password function call request to the password function program through a point-to-point communication mode, processing of password function calling is completed through the password function program, and a processing result is returned back; the password device carries out safety protection on usage of secret keys stored in the mobile terminal in the mode that a secure conversation is established between the password module stub and the password function program or password protection is adopted.

Description

technical field [0001] The invention belongs to the technical field of information security, in particular to a portable encryption device based on a mobile terminal. Background technique [0002] People who have used online banking have this experience. When you open an online banking account in the bank, the bank will often give you a password hardware that provides password functions to the computer through the USB interface. This password hardware is called USB Key (USB password key). The public key digital certificate and its private key are stored in the USB Key, which is used for identity verification when the user logs into the online banking account and / or security protection for online transaction payment or fund transfer (signature for payment or transfer). The functions of the USB Key mainly include key generation, storage, and cryptographic operations. [0003] The main reason for using USB Key is to protect the security of the key (private key), and storing t...

Claims

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Application Information

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IPC IPC(8): H04M1/725H04L9/00
Inventor 龙毅宏
Owner WUHAN UNIV OF TECH
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