| Date | User | Challenge | Score |
| Zebr0s | Hex | 5 | |
| Bigmac | XOR Starter | 10 | |
| ub_krypto_25_12 | Favourite byte | 20 | |
| Joe_Erl | ASCII | 5 | |
| Zebr0s | ASCII | 5 | |
| ub_krypto_25_12 | XOR Properties | 15 | |
| Zebr0s | Great Snakes | 3 | |
| Zebr0s | Finding Flags | 2 | |
| Joe_Erl | Great Snakes | 3 | |
| Joe_Erl | Finding Flags | 2 | |
| MarcosV | XOR Properties | 15 | |
| d3f4ult2_0 | Chinese Remainder Theorem | 40 | |
| ub_krypto_25_12 | XOR Starter | 10 | |
| ub_krypto_25_12 | Keyed Permutations | 5 | |
| Mounirmuhammad | ASCII | 5 | |
| 0x3af72 | Resisting Bruteforce | 10 | |
| Mounirmuhammad | Great Snakes | 3 | |
| 0x3af72 | Keyed Permutations | 5 | |
| Mounirmuhammad | Finding Flags | 2 | |
| deathknight | Montgomery Curves | 30 | |
| deathknight | Where's the Supersingular Curve | 25 | |
| deathknight | Image Point Arithmetic | 30 | |
| deathknight | The j-invariant | 20 | |
| deathknight | Meet me in the Claw | 120 | |
| deathknight | Better than Linear | 85 | |
| wcmason | You either know, XOR you don't | 30 | |
| d3f4ult2_0 | Modular Square Root | 35 | |
| myrrhderous | Finding Flags | 2 | |
| Aziz | Extended GCD | 20 | |
| obahya | Chinese Remainder Theorem | 40 | |
| PAWOS | Oh SNAP | 120 | |
| Aziz | Greatest Common Divisor | 15 | |
| Falafel | Lemur XOR | 40 | |
| ub_krypto_25_01 | Bringing It All Together | 50 | |
| grfenk | XOR Starter | 10 | |
| TechnoFile711 | Modular Arithmetic 1 | 20 | |
| grfenk | Bytes and Big Integers | 10 | |
| Aziz | You either know, XOR you don't | 30 | |
| kirakiraakira | Finding Flags | 2 | |
| obahya | Modular Square Root | 35 | |
| grfenk | Base64 | 10 | |
| ub_krypto_25_05 | XOR Properties | 15 | |
| ub_krypto_25_01 | Diffusion through Permutation | 30 | |
| CtREL0K | Gotta Go Fast | 40 | |
| d3f4ult2_0 | Legendre Symbol | 35 | |
| ub_krypto_25_01 | Confusion through Substitution | 25 | |
| grfenk | Hex | 5 | |
| blackout | Factoring | 15 | |
| danger_defeated | Bytes and Big Integers | 10 | |
| blackout | Working with Fields | 10 |
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