The function of digital certificates is to ensure the integrity and security of information and data.
The CA center uses digital certificate authentication technology with digital encryption technology as the core. Through digital certificates, the CA center can encrypt, decrypt, digitally sign and authenticate various information transmitted on the Internet. Various processing, etc., can also ensure that criminals will not be invaded during the digital transmission process, or even if it is invaded, the content cannot be viewed.
If a user installs a digital certificate during e-commerce activities, even if his account or password and other personal information are stolen, the security of the information and funds in his account can still be effectively protected.
Digital certificates are equivalent to ID cards in society. Users can use digital certificates to prove their identity and identify the other party’s identity when conducting e-commerce activities. During the application process of digital certificates, the CA center has a crucial role.
As a third-party organization, it must be guaranteed to have a certain degree of authority and fairness. The qualifications of my country’s CA centers are issued by the Ministry of Industry and Information Technology, and there are only about 30 of them nationwide. Enterprises have digital certification qualifications.
Extended information
Its encryption technology (encrypted transmission, digital signature, digital envelope and other security technologies) with digital certificates as the core can encrypt and decrypt information transmitted on the network, Digital signatures and signature verification ensure the confidentiality and integrity of information transmitted online and the non-repudiation of transactions. By using 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, the security of your account and funds can still be guaranteed.
It is an authoritative electronic document that can provide identity verification on the Internet. People can use it to prove their identity and identify each other in Internet interactions.
Digital certificates can be used for: sending secure emails, accessing secure sites, online securities transactions, online offices, online insurance, online taxation, online signing and online banking and other secure electronic transaction processing and secure electronic transaction activities.
Baidu Encyclopedia-Digital Certificate