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In: Computer Science

1) The ciphertext ESCLXYB has been obtained by using vigenere with key= (30 , 10 ,...

1) The ciphertext ESCLXYB has been obtained by using vigenere with key= (30 , 10 , 15 , 5). Find the plaintext?
2) the ciphertext OWRTLUFXRTLFTP by affine cipher , key=(21,5) find the plaintext?

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