Digital certificate provides digital identity authentication on the network, proving one's identity and identifying the other's identity; Encrypt and decrypt the information transmitted on the network, and digitally sign and verify the signature to ensure the confidentiality and integrity of the information transmitted on the network. With a digital certificate, even if the information you send is intercepted by others online, or even if you lose your personal account, password and other information, you can still ensure the security of your account and funds.

Digital certificate application scenario:

1, the server certificate is installed on the server device to prove the identity of the server and encrypt communication. Server certificates can be used to prevent fraudulent phishing websites.

2. E-mail certificate can be used to prove the authenticity of the e-mail sender. It does not prove the authenticity of the certificate owner's name identified by the CN item on the digital certificate, but only proves the authenticity of the e-mail address. With the received mail certificate, we can also send encrypted mail to the recipient. Encrypted mail can be transmitted on an insecure network, and only the holder of the receiver can open the mail.

3. Customer's personal/enterprise organization certificate, which is mainly used for identity authentication and electronic signature. SSL two-way login, document signature, code signing, form signature of some web pages.