HOMEWORK > CMSC456—Introduction to Cryptography Professor Jonathan Katz-Homework 2—Solutions


University of Notre Dame ECON ECON 20010 Homework 2—Solutions 1. This is false. Consider modifying the one-time pad so encryption appends a bit that is 0 with probability 1/4 and 1 with probability 3/4. This scheme will still be perfectly secret, but ciphertexts ending in 1 are more likely than ciphertexts ending in 0. 2. (a) The scheme is not perfectly secr ...[Show More]

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