What will be the ciphered text corresponding to “SANFOUNDRY” if beaufort cipher is used for encryption with key as “KEY”?(a) SBPISZTKZH(b) TCQJTAULAI(c) SELFQEXBHM(d) SPBISZKTZHThis question was addressed to me in an interview for internship.Question is from Cryptography topic in division Cryptography of Data Structures & Algorithms II

What will be the ciphered text corresponding to “SANFOUNDRY” if be

1.	What will be the ciphered text corresponding to “SANFOUNDRY” if beaufort cipher is used for encryption with key as “KEY”?(a) SBPISZTKZH(b) TCQJTAULAI(c) SELFQEXBHM(d) SPBISZKTZHThis question was addressed to me in an interview for internship.Question is from Cryptography topic in division Cryptography of Data Structures & Algorithms II
Answer» The CORRECT answer is (c) SELFQEXBHM For explanation: For encrypting plain text choose the first letter of plain text (i.e. S) in the first horizontal row. Then find the first letter of key (i.e. K) in the column OBTAINED in the first STEP. Finally, choose the leftmost letter of the row (i.e. S) obtained in the PREVIOUS step. So the CORRESPONDING cipher text is “SELFQEXBHM”.

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