| Date | User | Challenge | Score |
| elgasing21 | Structure of AES | 15 | |
| luwofi | Curves and Logs | 40 | |
| crowcell | Modular Square Root | 35 | |
| mohanch | ASCII | 5 | |
| registers_ninja | Base64 | 10 | |
| sai0742 | Base64 | 10 | |
| thang2006 | Greatest Common Divisor | 15 | |
| Superior | SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) | 0 | |
| Dessert | SSH Keys | 35 | |
| thang2006 | Lemur XOR | 40 | |
| mohanch | Great Snakes | 3 | |
| cyk0sure | OR Proof | 75 | |
| Hanan | Modes of Operation Starter | 15 | |
| Dessert | CERTainly not | 30 | |
| cyk0sure | OR Proof (CryptoHack) | 0 | |
| mohanch | Finding Flags | 2 | |
| Dessert | Privacy-Enhanced Mail? | 25 | |
| Hanan | Bringing It All Together | 50 | |
| sai0742 | Hex | 5 | |
| Hanan | Diffusion through Permutation | 30 | |
| cahidenes | No Random, No Bias | 120 | |
| Hanan | Confusion through Substitution | 25 | |
| sai0742 | ASCII | 5 | |
| Hanan | Round Keys | 20 | |
| luwofi | Scalar Multiplication | 35 | |
| Hanan | Structure of AES | 15 | |
| EcheExpert | Confusion through Substitution | 25 | |
| Hanan | Resisting Bruteforce | 10 | |
| Hanan | Keyed Permutations | 5 | |
| LatteVanille | Finding Flags | 2 | |
| Hanan | Modular Binomials | 80 | |
| Vibhavarir_1997 | Finding Flags | 2 | |
| Hanan | Adrien's Signs | 80 | |
| thang2006 | You either know, XOR you don't | 30 | |
| alfattd | Transparency | 50 | |
| cigamaLTT | Greatest Common Divisor | 15 | |
| ArceusBantai | Great Snakes | 3 | |
| thang2006 | Favourite byte | 20 | |
| somesalmon | Round Keys | 20 | |
| pc417 | Saying Hello | 20 | |
| thang2006 | XOR Properties | 15 | |
| somesalmon | Structure of AES | 15 | |
| ArceusBantai | Finding Flags | 2 | |
| Hanan | Chinese Remainder Theorem | 40 | |
| EcheExpert | Round Keys | 20 | |
| luwofi | Point Addition | 30 | |
| Hanan | Modular Square Root | 35 | |
| thang2006 | XOR Starter | 10 | |
| jaiveersingh | Confusion through Substitution | 25 | |
| Hanan | Legendre Symbol | 35 |
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