1. Go to the official website, Guangzhou Public Information Trading Center.
2. Click on the service guide
3. click CA and e-signature.
4. Click on the CA Digital Certificate and Electronic Signature Guide.
Legal basis:
Article 34 of the Electronic Signature Law of People's Republic of China (PRC) refers to the data such as words and codes used in the process of electronic signature to reliably link the electronic signature with the electronic signer. In practical application, "electronic signature making data" can be embodied as the private key held by the electronic signer. The private key is only kept and operated by the signer, and its unique corresponding public key is written into the digital certificate.