Introduction: SSL certificate by establishing between a client browser and a WEB server SSL secure channel, to encrypt data on the network, to prevent data from being intercepted or tapped. A SSL certificate includes a public key and a private key: The public key is mainly used for encrypted private key is mainly used to interpret the encrypted information. When point your browser to a secure domain, SSL protocol will confirm the synchronization client and server, and to create an encryption method and a unique session key between the two, so you can ensure the integrity of both the call and confidential information sex.
SSL certificates provide services mainly include:
1, server and user authentication to ensure data is sent to the correct client and server;
2, to prevent the middle of the encrypted data is stolen;
3, maintain the integrity of the data, to ensure that data is not changed during transmission;
4, because the Internet is transmitted in the clear, we have all kinds of information entered online are likely to be seen. The SSL certificate can be encrypted for us to transmit information, to ensure that is not compromised. 
SSL Certificate What is the importance?
l, to ensure the security of information transmission
When users visit the Web site for network transactions, some transactions need to be transmitted to the server information that is most directly related to private information and the economic interests of users, and SSL certificates can prevent information leakage.
2, to improve the authenticity of the site
Today there is some informal network sites, which makes many users to increase their vigilance to prevent network spoofing, SSL certificate and whether it has also been used as an important indicator for the majority of users to determine the authenticity of the site.
3, increase site traffic and the success rate of transactions
It can be said this is a chain reaction after the user has confirmed the authenticity of the site triggered. After the user to establish a sense of trust for the site is likely to continue to visit the website or transactions.
4, contribute to the healthy development of enterprises
Deploy SSL certificate to prove that it has complied with relevant laws and regulations called for a reliable technical measures, which is very important for the healthy development of enterprises.
Why sites require SSL certificate?
1, SSL certificates for business, shopping, banking portal and other online services, especially credit card business is very important. E-commerce sites have specific SSL certificate provider to display on their site, the browser checks the certificate of authenticity to ensure that users connect to the Web site is authentic site.
2, SSL certificates make business more secure site, the data is highly encrypted and sent over the network to prevent the leakage of private information. SSL is a program on nature, making it more difficult for third parties to participate in a transaction between the user and the Web site, achieve a high degree of safety. Simple terms, it reduces the chance of credit card theft, but also reduces participate in online transactions or other risks.
3, when the information spread on the Internet, information can easily be acquired is likely to have a third party to read this information, criminals also use the information to make profits. However, in the SSL security certificate, only be able to receive information between the sender and receiver to ensure the safe use of the user.
4, or if you've set up ready to build a commercial site, but no SSL certificate, you must consider purchasing an SSL certificate to ensure the normal operation of your transactions.
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