Rigorous identity authentication

Integrated with the eID electronic identity system of the Ministry of Public Security for individual user contract locks, real-time online identity authentication ensures the true real name identity of the signing party; Enterprise legal person users, contract locks authenticate the true identity of the enterprise legal person through integration with the industrial and commercial system.

Authoritative CA issues digital certificates

Contract locks have been connected to major CA centers across the country to verify the legality and validity of digital certificates, ensuring that signatures authenticated by digital certificates are legal and valid.

Seal controller protection pressure test

The seal controller is made of pure metal material, fully enclosed and isolated on all four sides. After performance testing, it has anti replacement and anti violent cracking functions, effectively preventing the risks encountered when taking out seals.

Bank level security protection

Contract lock adopts bank level security protection measures, from underlying service architecture to front-end business logic design and development, comprehensively ensuring the security of agreement signing between you and customers.

Your information can only be visible to you

Connected with the CA center, encrypted with a digital certificate, only those with a genuine and valid digital electronic certificate can open and browse, even if the internal technical personnel of the contract lock cannot see your contract content.

Anti tampering encryption method

Encryption standard: SHA-256 hash technology verifies that files will not be modified, allowing you to verify the authenticity and tamper proof nature of files. Even internal personnel of the contract lock cannot modify your document, ensuring that it is not modified every time a file is accessed.

Comprehensive backup strategy

Contract lock provides financial security backup at the level of bank transactions, in addition to local backup, remote backup and foreign country backup, ensuring the security and integrity of all customer data. We provide you with a secure storage environment.

Financial grade secure storage

Financial grade secure storage, contract locks provide you with a secure storage environment. All documents on the contract lock are transmitted using AES standard 256 bit SSL encryption to prevent tampering, ensure authenticity and validity. From the moment your file enters our system, it is instantly encrypted, and we ensure that only designated users can access the file.

International standardized information security

Comprehensive financial grade security solution standard electronic contracting cloud platform, based on the International Organization for Standardization information security management system standards, has established a scientific and effective management system to ensure the security of users' personal information and data. The Evidence Preservation and Notarization Platform provides effective legal evidence at the national notary level for every electronic contract you sign through cooperation with international electronic evidence certification agencies. The security solution of contract lock digital signature technology provides a digital signature solution based on local, cloud, and smart cards. The solution is based on widely accepted standards and complies with relevant laws and regulations, with an excellent record widely accepted by various industries.

Locally managed digital signatures

You can manage your own digital signatures in your own data center, within your firewall, and Contract Lock provides a solution for electronic signature security standard authentication.

Cloud based third-party electronic signature

Solution specially certified by provinces or industries, including business and taxation. Card and token based digital signatures You can use existing physical and software based authentication, including smart ID cards and employee access cards. The technical security solution provided by the contract lock ensures the security, validity, and confidentiality of the documents you sign on the contract lock.