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User Authentication and File Protection Method Based on Asymmetric Encryption

An asymmetric encryption and user authentication technology, applied in the field of resource file download, can solve the problems of large server processing pressure, easy scanning of file addresses, and inability to guarantee file security, so as to ensure security, reduce the length of communication chain, reduce The effect of service stress and server overhead

Active Publication Date: 2020-06-16
SICHUAN WINSHARE EDUCATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Every time you download any file, you need to implement the above process, which puts a lot of server processing pressure on the content integrator and content provider, and the file address is exposed and easy to be scanned, which makes the file security unable to be guaranteed, and eventually leads to information transmission. All three parties need to participate in the process, and the information transfer process is complicated and lengthy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A user authentication and file protection method based on asymmetric encryption, comprising the following steps:

[0020] A. The content provider provides the public key to the content integrator in an asymmetric encryption method and stores the public key;

[0021] B. After the content integrator receives the query content data request from the application software, it encrypts the content file download request address and public key corresponding to the query range data and provides it to the application software along with the address of the content provider;

[0022] C. The application software provides the public key and content file download request address to the address of the content provider in the form of ciphertext to request the download of the corresponding file;

[0023] D. After receiving the request, the content provider extracts the public key and verifies the public key. If the verification fails, it will not respond; if the verification passes, it wi...

Embodiment 2

[0025] In this embodiment, an example is given on the basis of the foregoing embodiments for detailed description.

[0026] Take the download of existing educational resource files as an example.

[0027] If a high school student wants to download a mock test question, the resource of the mock test question is stored on the server A of the content provider company A, and the content integration party is the server B of the company B. Server A provides a public key to server B in a regularly updated manner in an agreed asymmetric encryption manner, and the public key is stored in server A as one of the authentication information for server B.

[0028] The high school student sends a query content data request to server B through a mobile phone, tablet, computer, or other smart device that can install application software. After receiving the request, server B sends the content file download request address corresponding to the query range data to Encrypt and provide to the sma...

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PUM

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Abstract

The invention discloses a user authentication and file protection method based on asymmetric encryption. The method comprises the following steps: a content provider provides a public key for a content collector in an asymmetric encryption manner and stores the public key; the content collector receives an inquiry content data request of application software and provides a content file downloading request address corresponding to the inquired range data, content data, the public key, the address and the public key of the content provider for the application software in an encrypted manner; the application software provides the public key and the content file downloading request address for the address of the content provider in the form of ciphertext to request the downloading of a corresponding file; the content provider receives the request, extracts the public key, verifies the public key, if the public key is not verified, makes no response; and if the public key is verified, the content provider decrypts the ciphertext of the content file downloading request address by using a private key, and obtains and returns a file stream of the corresponding address file to the application software. The security of the content file is high, the communication link is short, and the server pressure is small.

Description

technical field [0001] The invention relates to the field of resource file downloading methods, in particular to a user authentication and file protection method based on asymmetric encryption. Background technique [0002] The downloading process of existing resource files involves three different systems, which are content integrator, content provider, and application software. The content integrator outputs the content files provided by the content provider to any application software for downloading, and the content provider provides the data of the content to the content integrator for query, and only allows the users of the content integrator to download and use the content files; The content aggregator queries all the content data it integrates, and when downloading content files, it downloads them from the content provider. In this process, the content integration party will disclose the address of the content file to be downloaded to the application software, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/0442H04L63/126H04L67/06
Inventor 连接力吴豪
Owner SICHUAN WINSHARE EDUCATION SCI & TECH