Consider the following encryption scheme to provide confidentiality. A wants to send a message M to B.
Fantastic news! We've Found the answer you've been seeking!
Question:
Consider the following encryption scheme to provide confidentiality. A wants to send a message M to B. A calculates X, the ASCII representation of today's date. A then XORs M with X to get the ciphertext C. when B receives C, he XORs C with X to get M. you can assume that the number of bits in M is no more than the number of bits in X. Is this a good scheme?
i. Give a YES/ NO answer.
ii. If you said NO, explain your answer i.e. explain what you think is the single biggest weakness of the scheme.
Related Book For
Introduction to Probability
ISBN: 978-0716771098
1st edition
Authors: Mark Daniel Ward, Ellen Gundlach
Posted Date: