ANYONE AHHH HELP ME 50 Points

3. bob is arguing that if you use output feedback (ofb) mode twice in a row to encrypt a long message, m, using the same key each time, it will be more secure. explain why bob is wrong, no matter what encryption algorithm he is using for block encryption (15 points).

Jackson, who works in the finance department of a company, is holding a seminar for other employees on how to file taxes. only three employees sign up to attend the seminar. which device can he use to share his presentation with a group of three employees?

Read “suburban homes construction project” at the end of chapters 8 and 9 (in the textbook) and then develop a wbs (work breakdown structure) in microsoft excel or in microsoft word (using tables)