✘ - - - DECIPHER is a book compilation that tackles different, new and old codes/ciphers. In addition, this book begins with the definition of cryptography along with it's different terminology for begginers, and better understanding.
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‣ This cipher is a cipher named after a Soviet Spy, Victor. In this cipher, we need a grid called the 'Straddling Checkerboard':
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We also need a secret sequence of four digits.
EXAMPLES: 1. Encrypt 'Black Magic'
• Using the grid, we first look for the coordinates where each letter is located. The row number muna bago yung column, like how we do the Polybius Square.
B L A C K M A G I C 20 28 3 21 27 29 3 24 8 21 • Tapos, gawin nating ganto yung coordinates:
2 0 2 8 3 2 1 2 7 2 9 3 2 4 8 2 1
Sineparate lang natin yung mga 2 digit na coordinates.
• Then, we think of the secret sequence. Ang gagamitin natin sa example ay 1714. I-aadd natin siya.
* If the sum has 2 digits, we get the ones place. • We now have a new set of coordinates.
3 7 3 24 9 26 8 9 0 7 3 1 9 62 * Coordinates 0,1,3,4,5,7,8,&9 can be a coordinate alone. However, 2 and 6 must have kasama. • Finally, we now convert these into letters using the grid.
3 7 3 24 9 26 8 9 0 7 3 1 9 62 A R A G S J I S E R A T S / • The encrypted word for "Black Magic" is ARAGSJISERATS/
2. Decrypt ARAGSJISERATS. SS:1714
• Using again the grid, kunin natin coordinates niya.
A R A G S J I S E R A T S / 3 7 3 24 9 26 8 9 0 7 3 1 9 62
