Shulou(Shulou.com)06/01 Report--

The essence of Internet transmission is to transmit signals between the user and the server. if it is only an ordinary transmission, once a third party cuts in from the middle, the information can be intercepted at any time, then the user will not be able to obtain the information they need. more seriously, if the information is stolen and tampered with, then the user will not only get the information they want, but also get the wrong information.

The addition of the ssl layer can avoid this situation, it is like a filter, built between the client and the server, filtering out "harmful information", so as to ensure that users can access the Internet safely. So what is a ssl digital certificate?

In fact, the ssl digital certificate is the same as the ordinary paper certificate, but it is different. Once the ordinary paper certificate is damaged, it can not be recovered, but the digital certificate exists on the network and will never disappear, but this kind of digital certificate is a symbol to prove one's identity. If the user has his own digital signature, when the server needs to be verified, the user can show his digital signature and establish contact with the server.

What is the purpose of ssl digital certificates?

1. When users conduct online transactions, because the transaction is in a virtual state, and the payment method used is also completed by virtual currency transactions, it is difficult to distinguish the identity of the other party. At this time, the role of ssl digital certificate is highlighted. He can identify whether the identity of the other party is correct. Only the identity is correct, the digital certificate will be released. If there is no ssl digital certificate, the transaction information and password may be stolen at any time. If this situation prevails, then no user will choose to trade online.

2. The second function of ssl digital certificate is to encrypt the transmitted information so that it can not be seen. If the client requests an encrypted file from the server, the server will ask for the public key in order to verify the identity of the client, and then send the encrypted information back to the client together with the public key. The client can unlock the encrypted file only through its own private key.

Ssl digital certificate has a good security function, so Anxin certificate suggests that you should choose a professional and authoritative ca institution when applying, and the ssl digital certificate issued by them can be trusted.

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