The Cipher Challenge Contest
Four degrees of difficulty, from pen & paper to complex mathematical problems
Solved Level 1 challenge Number Sequence — Part 3
Solved Level 2 challenge Assembly Point – Part 2
Solved Level 1 challenge Beaver Code
Solved Level 2 challenge Cracking SHA1-Hashed Passwords
Solved Level 2 challenge Assembly Point – Part 2
Solved Level 2 challenge CMEA 1
Solved Level 1 challenge Assembly Point – Part 1
Solved Level 3 challenge Elliptic Boogaloo – Part 3
Four degrees of difficulty, from pen & paper to complex mathematical problems