Digital signature method for escrowing private key of mobile terminal

A digital signature and mobile terminal technology, applied in electrical components, user identity/authority verification, transmission systems, etc., can solve the problem of inability to guarantee the communication security between the Bluetooth USB password key device and the host, and the inability to solve the compatibility of audio interfaces of different mobile terminals Problems and other issues, to achieve the effect of less performance requirements, good adaptability, and safety

Active Publication Date: 2015-05-13
QINGDAO WEIZHIHUI INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are USB password keys with Bluetooth interface or audio interface at present, the above-mentioned equipment still has the following disadvantages: due to the openness of the Bluetooth protocol, the security

Method used

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  • Digital signature method for escrowing private key of mobile terminal
  • Digital signature method for escrowing private key of mobile terminal
  • Digital signature method for escrowing private key of mobile terminal

Examples

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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings:

[0023] 1. Architecture diagram of mobile terminal digital signature system: according to figure 1 The described whole system is composed of three parts: mobile terminal, digital signature server and KMC server cipher machine.

[0024] (1) The mobile terminal has the function of network communication or short message, and can install APP. The user receives electronic official documents through the mobile terminal and digitally signs the electronic official documents.

[0025] (2) The digital signature server is a network server. The signature server has its own private key and certificate. The mobile terminal can communicate with it through the network or short messages. The main function of the digital signature server is to verify the user's request and ensure that only legitimate users pass the mobile. The terminal submits a digital signature request, and submits ...

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Abstract

The invention discloses a digital signature method for escrowing the private key of a mobile terminal. The mobile terminal needs to provide digital signature service in the development of e-government application, however, at present, the mobile terminal is lack of a safety condition providing a private key saving digital signature, the private key is likely to be stolen by a hacker at the mobile terminal, so that the digital signature cannot be realized directly by the mobile terminal. The invention provides a digital signature technology for the mobile terminal. The digital signature technology comprises the mobile terminal, a signature server and a KMC server cipher machine. The signature server is responsible for managing the signature private key of the user, all private keys of the system are encrypted and then saved in the cipher machine, the encrypted user' private key is mastered by the user, and the cipher machine is only communicated with the signature server. When a certificate is downloaded by a user, the terminal application packs a Hash value in digital signature and user identity information together to form digital signature request message, the digital signature request message is sent to the signature server through a short message, after the user request validation is passed, the cipher machine is called, and after the user' private key is digitally signed, the result is returned to the user to complete the digital signature process.

Description

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Claims

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Application Information

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Owner QINGDAO WEIZHIHUI INFORMATION
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