The unit master lock can be located on removable media (such as USB flash drive). This removable medium for storing electronic seals is equivalent to a physical seal and can be stored as a physical seal.
Even an ordinary office worker who knows nothing about technology can lock the chapter in the safe as before, and then take the corresponding chapter out of the cabinet for use after seeing the approval of the leader and put it back after use. Mobile media must be audited by the National Cryptography Bureau.
CA digital certificate:
Both parties of CA digital certificate communicate securely and provide electronic authentication. Using electronic signature to ensure the authenticity and integrity of electronic bidding documents can realize identity identification and electronic information encryption. By verifying the authenticity of identity information, the identity of the certificate holder can be verified.
It has the bidding function, encryption, authentication, integrity and legality, which can not only simplify the user's operation, but also help the bidder to reduce the cost, effectively safeguard the security of the electronic bidding system and effectively protect the information security and the legitimate rights and interests of the bidder.