The cipher used in the Sherlock Holmes book was pretty much a substitution cipher, although it would be impressive that he could solve it with such a short ciphertext. I think it is interesting that we can use matrices to encrypt things as well. I didn't like the ADFGX code very much because it required a keyword and a key matrix in order to make it work.
It does seem kind of foreign doing matrix algebra and modular arithmetic at the same time. I think that it would be good to go over in class tomorrow. It is hard to keep everything straight.
No comments:
Post a Comment