Verifying Isomorphic Cipher Reduction Using the y-Intercept from Collision Plots
Mandeep Singh, Albert H. Carlson, Christopher Briscoe · 2025
Collision plots, the plot of the number of collisions in a message at each character in the message, is a key visual for evaluating ciphers by their content. Evaluating the comparisons of characters by number, rather than the symbol, can be shown to be useful in identifying the original language of an encrypted message in spite of the random use of keys for encryption. All non-polymorphic ciphers can use this analysis for revealing information about those ciphers and be used in discovering the content of the messages. This process demonstrates the isomorphism in ciphers when encrypting messages.