| Date | User | Challenge | Score |
| jimun | Modular Binomials | 80 | |
| nelson_nyambega | Curveball | 100 | |
| nelson_nyambega | ProSign 3 | 100 | |
| KyleLee | ECB CBC WTF | 55 | |
| g00d3 | Great Snakes | 3 | |
| g00d3 | Finding Flags | 2 | |
| Coliin | Modular Inverting | 25 | |
| Coliin | Modular Arithmetic 2 | 20 | |
| toan2k4 | Finding Flags | 2 | |
| KyleLee | ECB Oracle | 60 | |
| Coliin | Modular Arithmetic 1 | 20 | |
| WinFire | ASCII | 5 | |
| Jinwo | Great Snakes | 3 | |
| s1340162_MAEDA | RSA Decryption | 20 | |
| UndercoverSquid | ASCII | 5 | |
| Jinwo | Finding Flags | 2 | |
| s1340162_MAEDA | Public Keys | 15 | |
| WinFire | Great Snakes | 3 | |
| roovveeess | Bytes and Big Integers | 10 | |
| WinFire | Finding Flags | 2 | |
| UndercoverSquid | Great Snakes | 3 | |
| UndercoverSquid | Finding Flags | 2 | |
| jimun | Adrien's Signs | 80 | |
| Charvey | Base64 | 10 | |
| YWzhong | Modular Binomials | 80 | |
| Mikayn | Lazy CBC | 60 | |
| TOZAWA_s1340118 | Modular Exponentiation | 10 | |
| Charvey | Hex | 5 | |
| TOZAWA_s1340118 | Public Keys | 15 | |
| Nemo2002 | Legendre Symbol | 35 | |
| Charvey | ASCII | 5 | |
| Charvey | Great Snakes | 3 | |
| Charvey | Finding Flags | 2 | |
| roovveeess | Base64 | 10 | |
| OriontDev | Network Attacks | 5 | |
| OriontDev | Great Snakes | 3 | |
| OriontDev | Finding Flags | 2 | |
| OriontDev | XOR Starter | 10 | |
| OriontDev | Bytes and Big Integers | 10 | |
| roovveeess | Hex | 5 | |
| OriontDev | Base64 | 10 | |
| P3ekaboo | Montgomery's Ladder | 40 | |
| 3kn0ch | Modular Arithmetic 2 | 20 | |
| OriontDev | Hex | 5 | |
| OriontDev | ASCII | 5 | |
| 3kn0ch | Modular Arithmetic 1 | 20 | |
| du_spin | Bytes and Big Integers | 10 | |
| P3ekaboo | Efficient Exchange | 50 | |
| SnBork | Passwords as Keys | 50 | |
| soec | Quadratic Residues | 25 |
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