The Correct Answer and Explanation is:
The correct answer to the puzzle is MRPRESIDENT.
The image is a screenshot from the Roblox game Evade, showing a cryptographic puzzle that players encounter. The puzzle presented is a Vigenère cipher, a classic method of encryption that uses a keyword to shift letters in a message. To solve it, one must use the provided key to decrypt the given ciphertext.
In this specific instance, the ciphertext is the string of letters “nrcrrsjdrng.” The key required for decryption is the word “BANANA.” The Vigenère cipher works by aligning the key with the ciphertext. Since the key is shorter than the message, it is repeated until it matches the length of the ciphertext. Therefore, the key “BANANA” becomes the repeating sequence “BANANABANAN” to correspond with each letter of “nrcrrsjdrng.”
Each letter of the ciphertext is then decrypted by shifting it backward in the alphabet. The number of places to shift is determined by the corresponding letter in the repeated key. For example, ‘A’ in the key means a shift of 0 positions, ‘B’ means a shift of 1 position, ‘N’ means a shift of 13 positions, and so on.
Applying this process, the first letter ‘n’ is decrypted using ‘B’, which results in ‘M’. The second letter ‘r’ is decrypted using ‘A’, resulting in ‘R’. The third letter ‘c’ is decrypted using ‘N’, resulting in ‘P’. When this decryption is carried out for the entire ciphertext using the full repeated key, the decoded message is revealed to be MRPRESIDENT. This phrase is the solution that players would need to enter into the game to proceed or unlock an objective.
