Symbols Ciphers

Lots of codes and ciphers rely on substituting letters (or digits or other characters) with symbols (small glyphs or drawings).

You can find a large collection of these ciphers on this page, including both encoders and decoders.

Attacks

Known cipher

If the cipher is well known, you can simply look up the substitution on the internet to decrypt a given ciphertext.

Markov Chain Monte Carlo (MCMC)

If the cipher, and hence the substitution, is unknown to you, then you can try to use the Markov chain Monte Carlo method to decrypt it, as highlighted and presented in the papers below.

• THE MARKOV CHAIN MONTE CARLO REVOLUTION
• Decrypting Classical Cipher Text Using Markov Chain Monte Carlo