Compare aes to des. for each of the following elements in des, indicate the comparable element in aes or explain why it is not needed in aes.
a. xor of subkey material with the input to the f function.
b. xor of the f function output with the left half of the block
c. f function
d. permutation p
e. swapping of halves of the block

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

There are quite a few applicable words here. modeling, programming, etc. let me know the options. 

Answer appreneurs; i believe this is correct plz check first/// good luck;

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