🔐 Classical Cryptography

Cipher Lab⚡

Decrypt the secrets of classical cryptography. Visualize, analyze, and master ancient encryption techniques.

Simple substitution cipher with fixed shift

Substitution cipher with custom alphabet mapping

Digraph substitution using a 5×5 grid

Matrix-based polygraphic substitution cipher

Polyalphabetic cipher using a keyword

Unbreakable cipher with random key

Transposition cipher using zigzag pattern