Question: Cryptography 1. Suppose that you intercept the Vernam encrypted ciphertext XJNRJ QPISY BZGZM AJHCL LZ Suppose further that p = 3, 9 = 4, and

Cryptography 1. Suppose that you intercept the Vernam encrypted ciphertext XJNRJ QPISY Cryptography

1. Suppose that you intercept the Vernam encrypted ciphertext XJNRJ QPISY BZGZM AJHCL LZ Suppose further that p = 3, 9 = 4, and that the original plaintext starts with KEEPCA. (a) Reconstruct the encryption vectors A (of length p) and B (of length q), as well as the key R they generate. (b) Decipher the message. 1/12 1. Suppose that you intercept the Vernam encrypted ciphertext XJNRJ QPISY BZGZM AJHCL LZ Suppose further that p = 3, 9 = 4, and that the original plaintext starts with KEEPCA. (a) Reconstruct the encryption vectors A (of length p) and B (of length q), as well as the key R they generate. (b) Decipher the message. 1/12

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