After completing 5 papers and still 3 to go, I m completely out of feelings. So nothing new to write other than the parotized 'pps' slides of the lectures.
Anyway while studying the security subject for the exam ( well, not until exam), I decided to write simple program ( a little chat program) using open SSL libraries. It may be the best way I can have a good idea on secure communication. Anyway most of theories are inside the shell of the libraries so it may just a mechanical code but still worth to try.
http://www-128.ibm.com/developerworks/linux/library/l-openssl.html seems to be a good place to start.