An electronic seal management method and system based on quantum key

Abstract

The present invention provides a quantum key-based electronic seal management method and system. The method includes: the first seal client and the second seal client distribute the first quantum key used for communication encryption; subordinate to the first seal The first participant of the client encrypts the file to be sealed, generates the first ciphertext, and passes it to the first seal client; the first seal client generates the first public key certificate, and passes it to the seal server; the seal server verifies The validity of the first public key certificate, if the verification is passed, send the seal die to the first seal client; the first seal client encrypts the first ciphertext, the first public key certificate and the seal die as the second The ciphertext is passed to the second seal client. By using quantum key management to build an electronic seal management system to ensure the correctness, integrity, timeliness and traceability of electronic seal issuance, and to complete the management of electronic seals under the protection of quantum keys.

Description

technical field [0001] The invention relates to the field of secure communication, in particular to a quantum key-based electronic seal management method and system. Background technique [0002] Quantum cryptography is the product of the combination of quantum mechanics and classical cryptography. It is an upstart in the field of information security and a hot research and application hotspot. The basic principles of quantum mechanics can guarantee its security, theoretically it can provide unconditional security. The proposal of the QKD protocol enables both parties to communicate to generate and share a random, secure key to encrypt and decrypt messages. As a result, quantum cryptography is more and more applied to the security field. The quantum key is generated through a series of operations between the two parties after the two parties establish communication. Its generation process is its transmission process. Using the characteristics of quantum mechanics, both pa...

AI Technical Summary

Problems solved by technology

The anti-counterfeiting code is usually composed of a group of random letters and numbers, but as the business grows, the applicability of the anti-counterfeiting code will gradually decrease

However, some government and enterprise departments even directly use scanned electronic seals in their internal official documents and insert them into documents in the form of pictures. This kind of picture seals are not anti-counterfeiting at all.

The use of unsafe electronic seals is not conducive to the tracking and anti-counterfeiting of electronic seals, and at the same time greatly increases the management and operation risks of government and enterprise departments

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