ou have written a terminal emulation program which sends and receives individual 8-bit keystrokes. Now you want to add encryption, to provide confidentiality. You decide to make use of AES-256-CFB - that is AES with a 256-bit key, operating in cipher feedback mode. Once a connection is set up, assuming no padding, how many blocks will AES encrypt in order to transmit a line of 32 keystrokes?

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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You have written a terminal emulation program which sends and receives individual 8-bit keystrokes. Now you want to add encryption, to provide confidentiality. You decide to make use of AES-256-CFB - that is AES with a 256-bit key, operating in cipher feedback mode.

Once a connection is set up, assuming no padding, how many blocks will AES encrypt in order to transmit a line of 32 keystrokes?

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