Network education resource encryption and tracing system and method

Abstract

The invention discloses a network education resource encryption and tracing system and method. The system comprises a network server, wherein the network server is provided with a user management module, a question bank and an authorization center. The method comprises the following steps: a key generation and storage module generates different RSA key pairs for different users, the users encryptquestions through keys and upload the encrypted questions to the question bank, the users decrypt and edit the questions that are uploaded by the users through the keys, the users who are not originalauthors of the questions decrypt and edit the questions of other users through permissions of the authorization center, the edited new questions are encrypted again through the keys and uploaded to the question bank, and the number of times of editing education resources is recorded at the same time to facilitate tracing. According to the system and method disclosed by the invention, the dissemination of the education resources performed by legitimate users can be effectively avoided, the leakage of the education resources can be avoided to a great extent, a question bank website sends the education resources to the users in the form of ciphertext, and the ciphertext can only be decrypted into a plaintext for use by using the unique private key held by the user.

Description

technical field [0001] The invention relates to the field of communication processing in digital information transmission, in particular to an encryption and traceability method for network educational resources. technical background [0002] Encryption, decryption, and traceability of educational resources are common information encryption and traceability issues in cryptography. Encryption and traceability of educational resources here specifically refer to a question in the general intelligent question bank system that is encrypted and uploaded after the process of generation, modification, upgrade and maintenance. It is a series of processes to read and use after deciphering, and to trace the evolution process of the topic. As an information resource shared among multiple users, educational resources have problems such as access to the same information by multiple users, as well as serving as an information provider and a third-party question bank system server other tha...

AI Technical Summary

Problems solved by technology

The common disadvantages of these three methods are that they cannot deal with the leakage of internal legal personnel, and it is difficult to prevent legitimate users from disseminating educational resources through certain means.

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