1. Electronic signature.

Refers to the data contained in a data message in electronic form and accompanied by data used to identify the identity of the signer and show that the signer approves its content. Generally speaking, electronic signature is an electronic signature of electronic documents through cryptographic technology, which is not a digital visualization of written signature, but similar to handwritten signature or seal, and can also be said to be an electronic seal. The purpose of electronic signature is to sign the electronic version of Mid-Autumn Festival greeting cards, invitations and construction contracts.

Second, electronic authentication.

The operation of using electronic technology to verify the legitimacy of users.

Third, the data certificate.

Digital certificate refers to a kind of digital authentication that identifies the identity information of all parties in Internet communication, and people can use it to identify each other's identity on the Internet. Therefore, digital certificate is also called digital identification. Digital certificate ensures the integrity and security of information and data by encrypting or decrypting the information and data of network users in computer network communication.

The difference between electronic signature and electronic authentication;

Electronic signature mainly refers to a security measure to give the parties a specific electronic password through a specific technical scheme, to ensure that the password can prove the identity of the parties, and at the same time to ensure that the information sent by the sender is not tampered with.

Electronic authentication, like electronic signature, is a security mechanism in e-commerce and a service provided by a specific institution to verify the authenticity of electronic signature and its signer. Electronic authentication refers to the activities of a specific third-party organization to verify the authenticity of a signature and its electronic signature through certain methods.

Electronic authentication is mainly used for the credit security of electronic transactions to ensure the authenticity and reliability of traders in the open network environment. Electronic authentication is to ensure that a person's identity information or specific information has not been modified or replaced during transmission. Electronic authentication can be carried out between two parties or by a third party.