Encrypt the message “ABCDEFGHIJKLMNOPQRST” using the columnar transposition cipher with the key “3 4 2 5 1”. Use “X” for padding, if needed. 1)CHMR DINS EJOT BGLQ AFKP 2)BGLQ DINS EJOT CHMR AFKP 3)EJOT CHMR AFKP BGLO DINS 4)ABCDE KLMNO PQRST FGHIJ

Encrypt the message “ABCDEFGHIJKLMNOPQRST” using the columnar transposition cipher with the key “3 4 2 5 1”. Use “X” for padding, if needed. 1)CHMR DINS EJOT BGLQ AFKP 2)BGLQ DINS EJOT CHMR AFKP 3)EJOT CHMR AFKP BGLO DINS 4)ABCDE KLMNO PQRST FGHIJ

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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

Encrypt the message “ABCDEFGHIJKLMNOPQRST” using the columnar transposition cipher with the key “3 4 2 5 1”. Use “X” for padding, if needed.
1)CHMR DINS EJOT BGLQ AFKP

2)BGLQ DINS EJOT CHMR AFKP

3)EJOT CHMR AFKP BGLO DINS

4)ABCDE KLMNO PQRST FGHIJ

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Step 1: Encrypting with Columnar Transposition Cipher

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Step 2: Step 1-Write out the message in rows based on the key order (3 4 2 5 1):

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Step 3: Step 2-Read the columns from left to right to form the encrypted message:

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