1.

What will be the plain text corresponding to cipher text “YGQ“ if hill cipher is used with keyword as “GYBNQKURP”?(a) SECRET(b) WORLD(c) DOLLAR(d) HELLOThe question was posed to me during an interview.My query is from Cryptography in section Cryptography of Data Structures & Algorithms II

Answer»

The CORRECT answer is (a) SECRET

To explain: To decrypt the message we follow the REVERSE procedure. We first find the inverse of the KEYWORD matrix then multiply it with cipher matrix.



Discussion

No Comment Found

Related InterviewSolutions