Electronic signature, like the digital certificate we use, is a means of identity verification, which generally refers to all electronic forms attached to electronic documents and logically associated with them. It can be used to identify the identity of the signer of electronic documents, ensure the integrity of documents, and show that the signer agrees with the factual contents stated in electronic documents.
Generally speaking, the identification of electronic signatures is from a technical point of view. It mainly refers to the security measures to identify the identities of both parties to the transaction and ensure that the transaction data content is not tampered with through specific technical solutions.
As the most mature "digital signature" at present, electronic signature technology is made of "asymmetric" cryptographic technology of public key and key. Electronic signature is a form of electronic signature. Image processing technology is used to transform the electronic signature operation into the same visual effect as the stamping operation of paper documents, and electronic signature technology is used to ensure the authenticity and integrity of electronic information and the non-repudiation of signers.