Choose a short phrase of between 50-60 characters. You could choose a website headline, song title, etc. Convert this phrase using Caesar shift encryption and a key of 5 to create your ciphertext. Carry out a brute force attack to try to work out the decryption key and plaintext.
Can I get help with this ceasar shift encryption?
Choose a short phrase of between 50-60 characters. You could choose a website headline, song
title, etc. Convert this phrase using Caesar shift encryption and a key of 5 to create your
ciphertext.
Carry out a brute force attack to try to work out the decryption key and plaintext.
(b) Computer A sends 5 packets of data to computer B using Sliding Windows Flow Control
• The transmission time (time to put on the network) for a packet of data is 1 'time units'
• Transmission time for an acknowledgement is 0 ‘time units’ (they are very small)
• The propagation time (time to travel through network) for any transmission is random
(between 2 and 3 ‘time units’, you choose a random time for each packet and
acknowledgement sent).
• B's packet processing time is 1. B cannot process multiple packets simultaneously.
• The initial window size is 3
Draw a diagram to show how flow will be controlled while the data is being sent.
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