CA authentication, that is, electronic authentication service, refers to the activities of providing authenticity and reliability verification for all parties involved in electronic signature.

A certificate authority (CA) is an organization that issues digital certificates. It is the authority responsible for issuing and managing digital certificates. As a trusted third party in e-commerce transactions, it is responsible for verifying the legitimacy of public keys in public key systems.

"Online ID card", namely electronic identity, is a credible identity authentication based on resident ID card and using living face recognition technology. It is an online ID card application jointly launched by the Ministry of Public Security and local public security organs. It is an electronic certificate generated on the mobile phone application by comparing the personal identities of citizens through biotechnology means of face recognition. "

How to open the King Card:

1. Open the Alipay application in your mobile phone.

2. Click "Home" at the bottom of the interface, and then click "Card Package" at the top.

3. Click the "Certificate" option at the bottom of the "Card Package" page, and then find "electronic identity".

4. The system will automatically jump to the "Certificate Application" page and click "Agree to the Agreement and Apply" below.

5. According to the system prompt, put the front face in the circle on the screen. After facial recognition, the online certificate application was successful.