Lettemp_blockdenote a Sage variable that contains the output of the first application of functionfK(f_Kin the Sage example code) while encrypting with Simplified DES. Using subroutines from the example sage Code, write sage code to recover the input block passed to Simplified DES Decrypt. Meaning reverse the first steps in Simplified DES Encrypt. You may assume that you have the first round key in a variableK1.Using subroutines from the Sage example code for Simplified DES, write a function to compute Simplified DES Decrypt.
Chapter 14 Transportation and its Impact on Global Logistics Please view the following videos: Videos: Move it: Transportation and Logistics:
Chapter 14 – Transportation and its Impact on Global LogisticsPlease view the following videos:Videos:Move it: Transportation and Logistics:https://www.youtube.com/watch?v=-ZpHiMTwOdMLogistics Ecommerce Distribution Expansion:https://www.youtube.com/watch?v=92OjoYZxTqkBased on the following questions, submit a 600 word individualdiscussion post (200 words per discussion question).1.How is the growth of ecommerce influencing the design of transportation system?2.Differentiate between alternative design