Contact us if you would like to verify the solutions for any of these challenges, or if you are struggling and would like some helpful hints. The challenges grow progressively harder from the bottom to the top of this page, with the most recent challenges at the top. This is reflective of the knowledge and creative insight that we gained over the span of three years that enabled us to construct increasingly complex ciphers.
The Ultimate Cipher Challenge (Spring 2021)
The Four Cipher Challenge V6 (Spring 2021)
The Cipher-Making Challenge (Spring 2021)
The Four Cipher Challenge V5 (Fall 2021)
The Great Cipher Challenge 2020 (a nationwide cryptology competition - website has 30 challenges)
The Four Cipher Challenge V4 (Spring 2020)
The RSA Challenge (Winter 2019)
The Two Cipher Challenge V2 (Fall 2019)
The Four Cipher Challenge V3 (Fall 2019)
The Two Cipher Challenge (Spring 2019)