Block chain-based method for notification of secret level changes and decryption reminders for deriving encrypted files

Abstract

The invention discloses a block chain-based derivation and encryption file encryption level change, decryption reminder notification method. At present, the unit that generates the derived classified file cannot be effectively notified of the original classified file after the classification level has been changed or decrypted. When the method of the present invention generates a derived encrypted file, it records the derived source information of the derived encrypted file, and after changing or decrypting the original encrypted file, the information of the original encrypted file that has been changed or decrypted is reported. Send it to the confidential administrative department at the same level, the server writes it into the alliance chain block, encrypts the alliance chain block, generates the block and writes it into the blockchain, and other alliance chain nodes or ordinary nodes obtain the content through signature verification , to change or decrypt the derived secret-related files. The method of the invention realizes prompting and notification of the change of secret level and decipherment in time for the derived secret file, can better realize secrecy, reduces the number of secret-related files, and is beneficial to the effective utilization of information.

Description

technical field [0001] The invention relates to the technical field of confidentiality management, in particular to a block chain-based method for changing the confidentiality level of a derivational encrypted document and reminding and notifying a decryption method. Background technique [0002] Every year, the national party and government organs and units will produce a lot of secret-related documents. The production methods of secret-related documents are divided into original classification and derived classification. Original classification is the initial act of lawfully determining, changing, and releasing state secrets by organs and units that have the right to classify secrets (hereinafter referred to as the original classifying right) according to law. Derivative classification refers to the act of an agency or unit implementing a higher-level agency or unit or handling other agencies or units that have classified matters, and determining the classification level, ...

AI Technical Summary

Problems solved by technology

However, after the current government agencies and units change the classification level of the original classified document or decrypt it, they cannot effectively notify the unit that generates the derived classified document from this document, and the derived classified document does not mark the derivation of the derived document. As a result, after changing or decrypting the original classified file, the derived classified file generated from this file cannot be changed or decrypted in a timely manner, which brings great difficulties to the work of changing and decrypting the classified class.

[0005] On the other hand, there are more and more secret-related documents in our country, and there is no perfect secret-level change and decryption system, resulting in more and more secret-related documents that should be deciphered but have not been deciphered, and the cost of secrecy is also increasing, which not only hinders the development and utilization of information resources, It has also seriously affected the disclosure of government information

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