What is SSL and using SSL Certificates

January 24, 2011



Ok im currently implementing external access for xendesktop environment and have come accross some concepts that require understanding.

Back at university I studied a module called ‘Trusted Computing’ within which I had to implement a small java program that implemented simple RSA encryption. The idea was to gain a deeper understanding of how the encryption worked and operated so by learning the algorithm for it and then transferring it into code I was able to input a given number and then encrypt and decrypt it, I may even post some of the code here once I find it.

Practically I now understand where this comes into play and the notion of private and public keys is used i knew the theory but didn’t quite understand how it was implemented in the real world.

This is where SSL (Secure Socket Layer) comes into play very simply one creates a certificate for a given domain name this contains both the public and private keys. when a connection requests access it provides the public key which the client then encrypts and sends back to the server. The server then uses its private key to decrypt the key and thus a successful private secure session is established.

This is shown nicely in the image below thats to doteasy.com

Useful Link
The good-to-know’s of SSL and SSL Certificates


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About mohamedridha

Network Systems Engineer with focus on Wireless LAN Infrastructure and Security. Interests in Middle East

View all posts by mohamedridha


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