1. Proof
Real-name authentication of identity includes multi-directional authentication of valid identity information of units and individuals, including two elements of Ministry of Public Security, three elements of mobile phone number, three elements or four elements of bank card, face recognition, two elements of enterprise and three elements of legal person/agent.
2.CA certificate
A CA certificate issued by a national authority is required. If someone wants to send an important document to a foreign person through the network, both the receiver and the sender need to apply for an electronic license from the licensing authority CA first. This encryption certificate includes the applicant's public key on the Internet, that is, the "public computer password", which is used for file verification. The sender encrypts the file with the public key of the receiver issued by CA, and signs the file with its own key. When the recipient receives the file, he first analyzes the signature with the sender's public key to prove that the file is indeed sent by the sender. Then use your own private key to decrypt the file and read it.
3. Time stamp
Time stamp technology is a variant application of digital signature technology. Trusted timestamp is an electronic certificate issued by the Joint Trusted Timestamp Service Center, which is used to prove that the contents of electronic data files have remained intact and unchanged since the application for trusted timestamp.
Therefore, to write an electronic signature, you first need to register the login platform and complete the personal real-name authentication. The system will automatically generate the default rectangular electronic signature. Users can also choose different fonts to make personalized electronic signatures according to their own preferences, and they can also add hand-drawn electronic signatures.
A trusted electronic contract provides a default electronic signature, a custom electronic signature and a hand-drawn electronic signature, which have the same legal effect. If you don't like handwritten signature, you can use system or custom electronic signature.