Electronic signature and drawing are not important, and the real method lies in electronic signature technology.
Electronic signature is not a red "electronic seal" generated by matting. The signature or official seal pattern generated by matting ps or drawing software is only the visualization of entity signature, not the electronic signature in the legal sense, which is far from the real electronic signature.
In fact, electronic signature is a visual upgrade on the basis of electronic signature technology, that is, a new original signature is formed by using the image appearance of signer's seal (signature), and then an electronic signature with the appearance of electronic signature can be realized by hash operation and digital signature. It follows the visual effect of traditional stamping or signature, and cooperates with electronic signature technology to ensure the integrity of electronic information and the undeniable nature of signer. Therefore, electronic signature and drawings are not important, and the real method lies in digital signature technology+digital certificate.
Digital certificate is an authoritative electronic document used to identify the identity of Internet users. Just like in reality, companies need to print official seals, and individuals need ID cards to go to the institutions designated by the Ministry of Public Security to make and put on record. The Ministry of Public Security in the field of electronic data is the Ministry of Industry and Information Technology of China, and the Ministry of Industry and Information Technology authorizes "electronic certification service institutions" (CA institutions for short) to make and issue digital certificates through asymmetric encryption. Generate a pair of passwords, that is, private key and public key, to bind the real identity of the holder. People can use it to prove their identity and verify each other's identity in the process of concluding an electronic contract.
Digital signature is one of the most widely used trusted electronic signature technologies, which uses asymmetric encryption technology to encrypt the content to be transmitted.
Using digital certificates and electronic signatures, the signer's identity can be identified and the recognition of electronic data content can be expressed. It can also verify whether the original text of the file has changed during transmission, and ensure the integrity, authenticity and non-repudiation of the transmitted electronic file.
The validity of electronic signature can only be verified by verifying the integrity of digital certificate. Compared with the problem that it is inconvenient to verify the authenticity of offline signature or stamp, the electronic signature mode can improve the rapidity of signature verification, so there is no need for public security to file.
To be continued.