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What will be the ciphered text corresponding to “ALGORITHM” if running key cipher is used for encryption with keyword as “DATASTRUCTURE”?(a) LDJOZOBBK(b) DLZOJBKBO(c) ZOLDJBKBO(d) OLZBJDKBOI got this question in an online quiz.Origin of the question is Cryptography in chapter Cryptography of Data Structures & Algorithms II |
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Answer» RIGHT choice is (b) DLZOJBKBO To explain: Encryption in RUNNING key cipher takes place exactly as in vigenere cipher if we don’t INCLUDE the indicator BLOCK. So by USING the tabula recta we can find the encrypted text which is “DLZOJBKBO”. |
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