Which block cipher mode of operating requires that both the message sender and receiver access a counter that computes a new val

Question

Kazeer [188]

1 year ago

9

Which block cipher mode of operating requires that both the message sender and receiver access a counter that computes a new val

ue whenever a ciphertext block is exchanged?

Computers and Technology

1 answer:

ankoles [38] · Answer 1 · 2023-06-21T15:02:05+03:00

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.

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