Encryption and decrypt your message

To secure data in network, you need to encryption and decrypt your message/document in network in which these plays an important role in network security. Showin detail the implementation of modified vigenere cipher algorithm in network security.

Syn flood is the result of some incomplete protocol exchange. The client initiates but does not complete it. Unfortunately these situations can occur normally! Describe a benign situation that could cause a protocol exchange to be incomplete.