Question: Security Principles: Cryptography & Encryption question. You are given a plaintext. Your task is to choose a 10-bit key of your choice and encrypt the
Security Principles: Cryptography & Encryption question. You are given a plaintext. Your task is to choose a 10-bit key of your choice and encrypt the plaintext. Please show the step-by-step process as you learned in the class.
Please note that it is important you show all the steps including the fixed permutations. For example, if you are to apply P4 on the text 1010, you must show the following steps.
Input: 1 0 1 0
Pos: 1 2 3 4
P4: 2 4 3 1
P4 applied on input: 0 0 1 1
Q1.
A) Use the steps of Simplified-DES that we learned in our last lab and encrypt the following plaintext.
Plaintext: 1 0 1 0 1 0 0 1
Key: You choose
B) Use the ciphertext obtained in A, and decrypt it. Show all the steps.
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