Encryption the plain-text using the round keys, Data Structure & Algorithms

Assignment Help:

Encryption the plain-text using the round keys:

1. (Key schedule) Implement an algorithm that will take a 128 bit key and generate the round keys for the AES encryption/decryption process.

2. (Encryption) Implement an algorithm that takes the key schedule and 128 bits of plain text and generates the cipher-text according to the AES encryption algorithm. Your code should print the state of each round as shown in sample out.txt.

3. (Decryption) Implement an algorithm that takes the key schedule and 128 bits of cipher-text and generates the plain-text according to the AES decryption algorithm. Your code should print the state of each round as shown in sample out.txt.

4. (mainline) Write a mainline (main() for your program that will read in the sbox(stored in le aes sbox.txt), inverse sbox (stored in leaes inv sbox.txt), and for each plain-text/key le it should

(a) generate the round keys using the key schedule algorithm,

(b) encryption the plain-text using the round keys, displaying the required outputs,

(c) decrypted the cipher-text (obtain from the last step) and decrypt it, displaying the required output.


Related Discussions:- Encryption the plain-text using the round keys

Data structure, Ask question #Minimum 1Mark each of the following statement...

Ask question #Minimum 1Mark each of the following statements as valid or invalid. If a statement is invalid, explain why. a. current ¼ list; b. temp->link->link ¼ NULL; c. trail->l

Multiqueue, data structure for multiqueue

data structure for multiqueue

Develop a material requirements plan, The below figure illustrates the BOM ...

The below figure illustrates the BOM (Bill of Materials) for product A. The MPS (Material requirements Planning) start row in the master production schedule for product A calls for

Convert graph into tree, How can we convert a graph into a tree ? Do we hav...

How can we convert a graph into a tree ? Do we have any standardized algorithm for doing this?

What is quick sort, What is quick sort?   Answer Quick sort is on...

What is quick sort?   Answer Quick sort is one of the fastest sorting algorithm used for sorting a list. A pivot point is chosen. Remaining elements are divided or portio

Indexed sequential files, Indexed Sequential Files An index is inserted...

Indexed Sequential Files An index is inserted to the sequential file to provide random access. An overflow area required to be maintained to permit insertion in sequence. I

Binary search tree, write an algorithm to delete an element x from binary...

write an algorithm to delete an element x from binary search with time complex

Types of a linked list, A linked list can be of the following types:- ...

A linked list can be of the following types:-  Linear linked list or one way list Doubly linked list or two way list. Circular linked list Header linked list

Doubly linked list, How does operations like insertion, deletion occur?

How does operations like insertion, deletion occur?

Define null values, Define null values.  In some cases a particular ent...

Define null values.  In some cases a particular entity might not have an applicable value for an attribute or if we do not know the value of an attribute for a particular entit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd