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Mathematics, 30.07.2019 18:20 mv603177

Suppose that plaintext message units are trigraphs in the 32-letter alphabet with a-z corresponding to 0-25, blank = 26, ? = 27, ! = 28, . = 29, '=30, $=31. you receive the sequence of ciphertext message units 152472, 116116, 68546, 165420, 168261. the public key is the sequence {24038, 29756, 34172, 34286, 38334, 1824, 18255, 19723, 143, 17146, 35366, 11204, 32395, 12958, 6479}, and the secret key is b = 30966, m = 47107.middotdecipher the message.

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