There is block cipher kind of mode of operation. The block cipher mode of operating requires that both the message sender and receiver is exchanged is the (CTR) Counter.
<h3>What is the Counter (CTR)?</h3>
This is known to be a common block cipher mode of operation. It often needs that both the message sender and receiver to have a kind of access a counter, that helps to computes a new value whenever a ciphertext block is been exchanged.
The disadvantage of CTR is known to be the fact that it needs a synchronous counter necessary for both the sender and receiver.
