Shannon's estimate for unicity distance (the length of ciphertext needed to deter- mine a key when...
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Shannon's estimate for unicity distance (the length of ciphertext needed to deter- mine a key when the plaintext is an English message) is H(K)/R, where R is the per-character redundancy in English What is the unicity distance for the Vigenère cipher with equiprobable keys of length ? (You may assume that R = 3.2 bits per character for English language). Shannon's estimate for unicity distance (the length of ciphertext needed to deter- mine a key when the plaintext is an English message) is H(K)/R, where R is the per-character redundancy in English What is the unicity distance for the Vigenère cipher with equiprobable keys of length ? (You may assume that R = 3.2 bits per character for English language).
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Related Book For
Discrete Mathematics and Its Applications
ISBN: 978-0073383095
7th edition
Authors: Kenneth H. Rosen
Posted Date:
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