On the Subject of the Nicodemus CM
A machine that knows no bounds when it comes to ciphers.
If the Submit Button is white, follow the instructions under Encrypt Instructions. Otherwise follow the instructions under Decrypt Instructions.
Encrypt Instructions
- Write the encrypted word underneath the keyword on screen 1 so that it fits in the columns of the keyword in reading order.
- For each column, move each letter in the Nth column forward in the alphabet equal to the alphabetic position of the Nth letter of the keyword (A1Z26).
- Read each letter in alphabetical order according to the keyword. In the case of duplicate letters, read them from left to right, top to bottom for the current duplicate letter.
- The resulting letters should form a decrypted word.
Decrypt Instructions
- Write X dashes underneath the keyword on screen 1 so that it fits in the columns of the keyword in reading order. X is equal to the length of the encrypted word.
- Place each letter of the encrypted word in alphabetical order via the keyword, replacing each dash underneath the letter. In the case of duplicate letters, place them from left to right, top to bottom for the current duplicate letter, until each of the dashes underneath the duplicate letters have been replaced.
- For each column, move each letter in the Nth column backward in the alphabet equal to the alphabetic position of the Nth letter of the keyword (A1Z26).
- Read the letters in reading order to get a decrypted word.