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Method for realizing fuzzy vault on the basis of geographical location information

A technology of geographical location information and fuzzy vault, which is applied in the field of using geographic location information and fuzzy vault technology to securely protect keys or other secret information, can solve problems such as easy to break, achieve strong scalability, ensure confidentiality, and enhance reliability sexual effect

Active Publication Date: 2015-02-18
杭州珞珈数据科技有限公司
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  • Abstract
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Problems solved by technology

[0005] Although the above method can realize the normal use of data by users within the legal area, once the cryptographic keys and other information protecting these data are obtained by malicious attackers, the above protection measures can be easily broken

Method used

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  • Method for realizing fuzzy vault on the basis of geographical location information
  • Method for realizing fuzzy vault on the basis of geographical location information
  • Method for realizing fuzzy vault on the basis of geographical location information

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing.

[0034] This use case implements a method for realizing a fuzzy vault based on geographic location information (flowchart as shown in figure 1 shown), including that the user obtains the local geographic location information through the device, and generates a registration digital fingerprint or query digital fingerprint required in the fuzzy treasury binding process through the digital fingerprint generation part based on the geographic location information; the user sends the key or other The secret information that needs to be protected (the key is taken as an example below) is bound with the registered digital fingerprint to generate a fuzzy vault; the user uses the query digital fingerprint to extract the key from the fuzzy vault.

[0035] 1. The user generates a registered digital fingerprint through the digital fingerprint generation part based on geographic location ...

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Abstract

The invention relates to a method for realizing a fuzzy vault on the basis of geographical location information. The method can be implemented on various mobile terminals with positioning functions. The method includes generating digital fingerprints on the basis of the geographical location information, binding the fuzzy vault with secret information and extracting the secret information from the fuzzy vault. The step of generating the digital fingerprints on the basis of the geographical location information refers to acquiring the current geographical location information and subjecting the same to treatment such as quantifying and salting to generate the digital fingerprints. The salting process aims to enhance non-duplicability and reliability of the digital fingerprints. The method has the advantages that the fuzzy vault is realized by the aid of the geographical location information, so that confidentiality and integrity of the secret information and system usability are guaranteed; the method can be applied to the all mobile equipment with a positioning function, thereby having high generalizability.

Description

technical field [0001] The invention belongs to the technical fields of information security and cryptography, and in particular relates to a scheme for securely protecting keys or other secret information by using geographic location information and fuzzy vault technology. Background technique [0002] With the rapid development of mobile terminals represented by Android and IOS, the mobile Internet is also developing at a high speed. While the mobile Internet brings more convenient, fast and personalized services to users, the accompanying security problems are becoming more and more serious. More and more researchers have begun to pay attention to this problem, and have continuously obtained results. [0003] With the expansion of the scope of human activities and the development of mobile terminal equipment, the positioning function has become a standard configuration of mobile terminal equipment. Various mobile Internet services based on geographic location informatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08G06K9/00
Inventor 游林陈宇磊
Owner 杭州珞珈数据科技有限公司
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