COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK SECURITY AND CYBERSECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pigpen cipher
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Baconian cipher
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Morse code
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Encryption
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Detailed explanation-1: -In 1623, Francis Bacon created a cipher system using the techniques of substitution and steganography-the art of writing hidden messages in such a way that no one apart form the sender and receiver know of its existence.
Detailed explanation-2: -Baconian cipher example To encode a message each letter of the plaintext is replaced by a group of five of the letters ‘A’ or ‘B’. The pattern of standard and boldface letters is: ba aabbaa b aaabaaa abba aaaaaa bb aaa bbabaabba ba aaaaaaaa ab b baaab bb babb ab baa abbaabb ‘b’ bb ‘b’.
Detailed explanation-3: -The Baconian cipher is a substitution cipher in which each letter is replaced by a sequence of 5 characters. In the original cipher, these were sequences of ‘A’s and ‘B’s e.g. the letter ‘D’ was replaced by ‘aaabb’, the letter ‘O’ was replaced by ‘abbab’ etc.