The main thing I want to learn more about is cryptology, and in particular cryptanalysis. I've been collecting papers that I want to read but I'm still missing

The main thing I want to learn more about is cryptology, and in particular cryptanalysis. I've been collecting papers that I want to read but I'm still missing a lot of the mathematical background that I need to understand them. I'm currently working through a new book called Applied Cryptanalysis - Breaking Ciphers in the Real World and plan to fill in the math as needed from other sources. Like many other people I also have SICP on my list and it will remain there until I have finished it including most of the exercises. I have also been learning Haskell over the last year and plan to continue using it as much as possible, especially for mathematical oriented projects such as implementing attacks from the cryptanalysis book.