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How does SSL works?


1.      A browser or server attempts to connect to a Website. Web server, secured with SSL. 

2.      The browser/server requests that the Web server identify itself.

  1. The Web server sends the browser/server a copy of its SSL certificate and Public Key

4.      Web Brower has list of trusted certificate authorities

5.      Web server responds by sending a certificate. Server responds by sending a copy of its SSL Certificate, including the server's public key.

6.      Web browser checks the certificate and verify whether the certificate is issued by one of it’s trusted security certificate authorities.

  1. The browser/server checks to see whether or not it trusts the SSL certificate. If so, it sends a message to the Web server.
  2. The Web server sends back a digitally signed acknowledgement to start an SSL encrypted session.
  3. Encrypted data is shared between the browser/server and the Web server.

10.  If everything are fine, then browser generates a random symmetric key

11.  Then use the Public Key shared by the SSL to encrypt the data. The session key is used to encrypt all transmitted data after the secure connection is made,

12.  Web server decrypt the data using the it’s own Private key

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