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Problem 1 . Nam - joo has just intercepted a long piece of Vign re ciphertext. She knows it is the encryption of English plaintext,
Problem Namjoo has just intercepted a long piece of Vignre ciphertext. She knows it is the encryption of English plaintext, and based on an analysis of indices of coincidence, she thinks that the period is most likely When she rewrites the ciphertext into a rectangle of width she finds that the the most frequent letter in the first column is A Given just this information, give an example of a word that might be the keyword that was used for encryption. Explain briefly. 
Problem Namjoo has just intercepted a long piece of Vignre ciphertext. She knows it is the encryption of
English plaintext, and based on an analysis of indices of coincidence, she thinks that the period is most likely
When she rewrites the ciphertext into a rectangle of width she finds that the the most frequent letter in the first
column is A Given just this information, give an example of a word that might be the keyword that was used for
encryption. Explain briefly.
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Intelligent Databases Object Oriented Deductive Hypermedia Technologies
Authors: Kamran Parsaye, Mark Chignell, Setrag Khoshafian, Harry Wong
1st Edition
0471503452, 978-0471503453
