| Date | User | Challenge | Score |
| yrighting | Bytes and Big Integers | 10 | |
| leopoldofr | Extended GCD | 20 | |
| oiu890 | Deriving Symmetric Keys | 40 | |
| Sadia_Afrin42 | Base64 | 10 | |
| Rotce | Passwords as Keys | 50 | |
| leopoldofr | Greatest Common Divisor | 15 | |
| LTaki | Point Addition | 30 | |
| Shun2439 | Keyed Permutations | 5 | |
| RobertoYSL | Passwords as Keys | 50 | |
| sdigs | Passwords as Keys | 50 | |
| oiu890 | Computing Shared Secrets | 30 | |
| Sabiha_03 | Favourite byte | 20 | |
| Matou | Transparency | 50 | |
| 0xSonic | Manyprime | 40 | |
| davide_rebuffo | Favourite byte | 20 | |
| Sabiha_03 | You either know, XOR you don't | 30 | |
| Donnino | Passwords as Keys | 50 | |
| tanji15 | Favourite byte | 20 | |
| Sadia_Afrin42 | Hex | 5 | |
| NorthNorth | ASCII | 5 | |
| oiu890 | Computing Public Values | 25 | |
| toaru_k | Bringing It All Together | 50 | |
| n0ah | Fast Primes | 75 | |
| rida | Passwords as Keys | 50 | |
| davide_rebuffo | XOR Properties | 15 | |
| tanji15 | XOR Properties | 15 | |
| Mosomat | Keyed Permutations | 5 | |
| Rotce | Modes of Operation Starter | 15 | |
| davide_rebuffo | Modes of Operation Starter | 15 | |
| Mosomat | Passwords as Keys | 50 | |
| danielepanciroli | Passwords as Keys | 50 | |
| Sandu420 | Passwords as Keys | 50 | |
| davide_rebuffo | Passwords as Keys | 50 | |
| tanji15 | XOR Starter | 10 | |
| yrighting | Base64 | 10 | |
| Sabiha_03 | XOR Properties | 15 | |
| JoaoV0015 | Base64 | 10 | |
| tanji15 | Bytes and Big Integers | 10 | |
| heeheeheehar | A True Genus | 175 | |
| Vizz_77 | Passwords as Keys | 50 | |
| LTaki | Point Negation | 10 | |
| Sabiha_03 | XOR Starter | 10 | |
| n0ah | Marin's Secrets | 50 | |
| Framed | Greatest Common Divisor | 15 | |
| tanji15 | Base64 | 10 | |
| Sabiha_03 | Bytes and Big Integers | 10 | |
| yrighting | Hex | 5 | |
| tanji15 | Hex | 5 | |
| tanji15 | ASCII | 5 | |
| Smuggler | Greatest Common Divisor | 15 |
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