1.

What will be the plain text corresponding to cipher text “SFNUFACT” if with number of columns are given to be 3 and route of reading is from the bottom right anti clockwise?(a) FACTSFUN(b) FACTFUNS(c) FUNSFACT(d) FUNFACTSI have been asked this question in an interview for internship.I need to ask this question from Cryptography topic in portion Cryptography of Data Structures & Algorithms II

Answer»

Correct option is (d) FUNFACTS

The best EXPLANATION: For DECRYPTION we REVERSE the process used in encryption. So we arrange the letters of cipher text from bottom right anti CLOCKWISE and then read the grid horizontally.

F

U

N

F

A

C

T

S

So the resulting plain text is “FUNFACTS”.



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