| Date | User | Challenge | Score |
| sloppyfocus | Base64 | 10 | |
| cybersensei90 | Finding Flags | 2 | |
| YooAlixa | XOR Properties | 15 | |
| erengokirmak | Round Keys | 20 | |
| maritime4824 | Modular Square Root | 35 | |
| sloppyfocus | Hex | 5 | |
| AZZ912 | Bytes and Big Integers | 10 | |
| shokanmorit | Symmetry | 50 | |
| shokanmorit | Bean Counter | 60 | |
| monk000 | Greatest Common Divisor | 15 | |
| erengokirmak | Structure of AES | 15 | |
| HarryT1211 | Greatest Common Divisor | 15 | |
| sloppyfocus | ASCII | 5 | |
| sloppyfocus | Great Snakes | 3 | |
| sloppyfocus | Finding Flags | 2 | |
| shokanmorit | Triple DES | 60 | |
| shokanmorit | Lazy CBC | 60 | |
| erengokirmak | Resisting Bruteforce | 10 | |
| shokanmorit | Flipping Cookie | 60 | |
| tranchsanto | Megalomaniac 3 | 120 | |
| erengokirmak | Keyed Permutations | 5 | |
| shokanmorit | ECB CBC WTF | 55 | |
| erengokirmak | Transparency | 50 | |
| shokanmorit | Passwords as Keys | 50 | |
| TheCursedChild | Modular Binomials | 80 | |
| shokanmorit | Modes of Operation Starter | 15 | |
| shokanmorit | Bringing It All Together | 50 | |
| erengokirmak | SSH Keys | 35 | |
| RawanCys | Bringing It All Together | 50 | |
| shokanmorit | Diffusion through Permutation | 30 | |
| Pinotage | Diffusion through Permutation | 30 | |
| shokanmorit | Confusion through Substitution | 25 | |
| RawanCys | Diffusion through Permutation | 30 | |
| TheCursedChild | Adrien's Signs | 80 | |
| shokanmorit | Round Keys | 20 | |
| erengokirmak | CERTainly not | 30 | |
| shokanmorit | Structure of AES | 15 | |
| TheCursedChild | Chinese Remainder Theorem | 40 | |
| AZZ912 | Base64 | 10 | |
| shokanmorit | Resisting Bruteforce | 10 | |
| TheCursedChild | Modular Square Root | 35 | |
| laii24 | Finding Flags | 2 | |
| shokanmorit | Keyed Permutations | 5 | |
| HarryT1211 | You either know, XOR you don't | 30 | |
| shokanmorit | Network Attacks | 5 | |
| shokanmorit | Great Snakes | 3 | |
| AZZ912 | Hex | 5 | |
| Loredox | LWE Background | 5 | |
| sandwhales | Round Keys | 20 | |
| shokanmorit | Finding Flags | 2 |
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