Calculates encrypted and decrypted messages using the mathematical principles of the affine cipher, a type of substitution cipher. The tool processes plain text by applying the formula ax + b (mod 26), where 'a' and 'b' are integer keys chosen by the user, and x is the numerical representation of the letter. It assists users in determining the modular inverse necessary for decryption and offers an integrated brute force mode to test potential key combinations when the original message cannot be recovered through standard means.
Security students, cryptography enthusiasts, and hobbyists use this resource to understand fundamental encryption techniques. Practitioners can apply it to academic problems or personal projects requiring basic symmetric encryption demonstrations.