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

It is quite difficult for ssl two-way authentication. First of all, this ssl is to add a layer of encryption between the upper layer of plaintext and the TCP layer, so as to ensure the security of the upper layer information transmission. It's like this http plus this ssl certificate will be called this https. Then the steps of ssl two-way authentication include the following.

1. The browser needs to send a connection request to this server. This is the first point of ssl two-way authentication.

2. The server will automatically send the ssl certificate and some information related to the certificate to the client's browser.

3. The certificate sent by this server will be checked by the client's browser to see if it is issued by a ca institution trusted by his own browser. If you meet the requirements, you will continue to implement the ssl protocol; if not, the client browser will have a security warning, which you need to pay attention to.

4. The customer's browser ssl certificate contains a lot of information, such as the domain name and public key of the certificate. This can be compared with the information sent by the server. If it is the same, it means that the browser agrees with the server. It is possible to carry out this ssl certification.

5. The server side needs the client to send their certificate and verify it. This is a necessary step for ssl certification. At the same time, the client will inform its browser of an acceptable cryptographic technology.

6. The key step of this two-way authentication is that the server will choose the password scheme with the highest degree of encryption in many schemes, and then use the customer's public key to encrypt it before notifying the browser.

7. After receiving the information from the client, the server decrypts it with its own private key to obtain the call key.

The next exchange of information between the server and the browser is two-way authentication, and the symmetric keys are encrypted. The above two-way authentication is completed.

SSL certificate securely encrypts the website, which can effectively prevent hijacking, prevent your website from being maliciously implanted with advertisements, prevent tampering and monitoring from leaking users' passwords, and optimize the SEO ranking of search engines with SSL certificates.

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