Problem 1499. Kryptos - CIA Cypher Sculpture: Vigenere Encryption

The Kryptos Sculpture contains four encypted messages.

This Challenge is to Encrypt two of the original messages for the sculptor.

The method employed is Vigenere Encryption. One clarification is that "?" are removed from the coding sequence and then re-inserted in the final encoded message.

Original phrase: Between subtle shading and the absence of light lies the nuance of iqlusion.

For coding purposes spaces and punctuation are removed, except "?".

Phrase to encode: BETWEENSUBTLESHADINGANDTHEABSENCEOFLIGHTLIESTHENUANCEOFIQLUSION

Input: Encode Phrase, Vigenere alphabet word, Vigenere shift word

Vigenere alphabet word ='KRYPTOS';

Vigenere shift word ='PALIMPSEST';

Output: EMUFPHZLRFAXYUSDJKZLDKRNSHGNFIVJYQTQUXQBQVYUVLLTREVJYQTMKYRDMFD

The encryption matrix for this case:

KRYPTOSABCDEFGHIJLMNQUVWXZ
PTOSABCDEFGHIJLMNQUVWXZKRY
ABCDEFGHIJLMNQUVWXZKRYPTOS
LMNQUVWXZKRYPTOSABCDEFGHIJ
IJLMNQUVWXZKRYPTOSABCDEFGH
MNQUVWXZKRYPTOSABCDEFGHIJL
PTOSABCDEFGHIJLMNQUVWXZKRY
SABCDEFGHIJLMNQUVWXZKRYPTO
EFGHIJLMNQUVWXZKRYPTOSABCD
SABCDEFGHIJLMNQUVWXZKRYPTO
TOSABCDEFGHIJLMNQUVWXZKRYP

Follow Up Challenges:

1) Vigenere Decryption

2) Dictionary search

3) KRYPTOS Part IV

KRYPTOS Solutions

Solution Stats

33.17% Correct | 66.83% Incorrect
Last Solution submitted on Jun 23, 2024

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers49

Suggested Problems

More from this Author296

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!