| Date | User | Challenge | Score |
| williamNah | Extended GCD | 20 | |
| DaBot | Curveball | 100 | |
| y0dam4n | The Good, The Pad, The Ugly | 100 | |
| Ali_yahya | Network Attacks | 5 | |
| lucas112k | Bytes and Big Integers | 10 | |
| lucas112k | Base64 | 10 | |
| la_vltk | Successive Powers | 60 | |
| therealanshul | Private Keys | 20 | |
| electus08 | XOR Properties | 15 | |
| DaBot | Smooth Criminal | 60 | |
| kennard | Finding Flags | 2 | |
| Eralyen | Point Negation | 10 | |
| williamNah | Greatest Common Divisor | 15 | |
| lucas112k | Hex | 5 | |
| flouxtine | Smooth Criminal | 60 | |
| Eralyen | Background Reading | 5 | |
| lucas112k | ASCII | 5 | |
| dosukoi | You either know, XOR you don't | 30 | |
| dosukoi | Favourite byte | 20 | |
| lucas112k | Great Snakes | 3 | |
| 0_0A | Structure of AES | 15 | |
| dosukoi | XOR Properties | 15 | |
| williamNah | Lemur XOR | 40 | |
| lucas112k | Finding Flags | 2 | |
| dosukoi | XOR Starter | 10 | |
| NK_HERE | Confusion through Substitution | 25 | |
| ynwa_ | ECB CBC WTF | 55 | |
| dosukoi | Bytes and Big Integers | 10 | |
| SCAVy | XOR Properties | 15 | |
| dosukoi | Base64 | 10 | |
| DaBot | Montgomery's Ladder | 40 | |
| dosukoi | Hex | 5 | |
| zhfps | ZKP Introduction | 5 | |
| Minh_142857 | Diffusion through Permutation | 30 | |
| dosukoi | ASCII | 5 | |
| williamNah | You either know, XOR you don't | 30 | |
| dosukoi | Great Snakes | 3 | |
| SCAVy | XOR Starter | 10 | |
| dosukoi | Finding Flags | 2 | |
| SCAVy | Bytes and Big Integers | 10 | |
| NK_HERE | Round Keys | 20 | |
| 0rb1tz | Hex | 5 | |
| SCAVy | Base64 | 10 | |
| 0rb1tz | ASCII | 5 | |
| SCAVy | Hex | 5 | |
| Minh_142857 | Confusion through Substitution | 25 | |
| SCAVy | ASCII | 5 | |
| SCAVy | Great Snakes | 3 | |
| therealanshul | Euler's Totient | 20 | |
| SCAVy | Finding Flags | 2 |
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