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).

Type the correct answer in the box. spell all words correctly. which view of report creation allows you to customize the report before the database program creates it? creating a report in allows you to customize the report before the database program creates it. pl asap

Me ! evelyn is a manager in a retail unit. she wants to prepare a report on the projected profit for the next year. which function can she use? a. pmt b. round c. division d. what-if analysis

Idon’t understand the double8 coding problem. it is java