Method for restricting encrypted certificated electronic map with variable information

A technology for constraining information and electronic maps, which is applied in the field of encrypted and authenticated electronic maps with variable constraining information, can solve problems such as electronic map distinction, and achieve the effects of concealing authentication methods, protecting copyrights, and increasing the difficulty of deciphering.

Inactive Publication Date: 2010-08-04
苏州位置科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the validity period and area of ​​use of the same version of the electronic map are the same, and it is impossible to distinguish the use range and occasion of the electronic map according to different user levels or different user needs

Method used

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  • Method for restricting encrypted certificated electronic map with variable information
  • Method for restricting encrypted certificated electronic map with variable information
  • Method for restricting encrypted certificated electronic map with variable information

Examples

Experimental program
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Embodiment

[0027] Example: When there is a new electronic map update, the user asks the publisher for a digital signature file, and publishes the commercial digital signature file to encrypt and authenticate the electronic map. Only the electronic map that has passed the encrypted authentication can be read and used by the navigation software.

[0028] The steps for a publisher to generate a digitally signed file include:

[0029] Step S1: Determine the constraint information, and encrypt the constraint information with a key to obtain the first part of the digital signature file. Constraint information can be set arbitrarily according to needs. For example, constraint information can be the agreed period of use of the electronic map, use area and / or user information, etc. User information includes the version number of the navigation software, the version number of the electronic map to be installed, and the navigation map. device number and other information. In this way, even for the...

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PUM

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Abstract

The invention discloses a method for restricting an encrypted certificated electronic map with variable information. Restriction information is set in a digital signature file by using a plurality of kinds of encryption algorithms. A user can use the electronic map only after the user passes the certification of the digital signature file. The publisher of the electronic map can randomly set a plurality of kinds of restriction information. When a novel electronic map is published, the user can upgrade the electronic map. The upgraded electronic map can only be used for restricting using time, specific user, specific software version or specific device specified in the information, thereby obtaining the goals of protecting the copyright of the electronic map and differently treating different users.

Description

technical field [0001] The invention relates to an encryption authentication method of an electronic map, in particular to an encryption authentication electronic map method with variable constraint information. Background technique [0002] With the rapid development of our country's economy, the construction of highways and the improvement of urban traffic are changing with each passing day, and the update of electronic maps has become very necessary. When a new electronic map comes out, it is necessary to upgrade the electronic map used by old customers. When there is no copyright protection, after an old customer upgrades the electronic map, he may release the upgraded electronic map for other users to use at will, which infringes the interests of the electronic map merchant. Subsequently, it appeared that data such as an activation code was required to activate the update of the electronic map, but this code was easy to be deciphered, and the effect of copyright protec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/14
Inventor 张鹏邹平
Owner 苏州位置科技有限公司
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