Legal analysis: CA (Certificate Authority), also known as e-commerce certification center, is the authority responsible for issuing and managing digital certificates. As a trusted third party in e-commerce transactions, CA is responsible for verifying the legitimacy of public keys in public key systems.

The CA Center issues a digital certificate to each user who uses the public key. The function of digital certificate is to prove that the user listed in the certificate legally owns the public key listed in the certificate. The digital signature of CA makes it impossible for attackers to forge and tamper with certificates. In SET transaction, CA not only issues certificates to cardholders and merchants, but also issues certificates to banks and gateways that collect money.

In short, social security online application for CA certification is online key and online secret protection.

The specific operation should be guided by a manual.

Legal basis: Article 64 of People's Republic of China (PRC) Social Insurance Law includes basic endowment insurance fund, basic medical insurance fund, industrial injury insurance fund, unemployment insurance fund and maternity insurance fund. In addition to the basic medical insurance fund and maternity insurance fund combined accounting, other social insurance funds are accounted for separately according to social insurance types. Social insurance funds implement a unified accounting system throughout the country. The social insurance fund is earmarked for special purposes, and no organization or individual may occupy or misappropriate it. The basic old-age insurance fund will gradually implement national overall planning, and other social insurance funds will gradually implement provincial overall planning. The specific time and steps shall be stipulated by the State Council.