| Date | User | Challenge | Score |
| PhantomStrike007 | Great Snakes | 3 | |
| tiser | Quadratic Residues | 25 | |
| Samuel000 | Lazy CBC | 60 | |
| tiser | Modular Inverting | 25 | |
| lemful | ECB Oracle | 60 | |
| Toadytop | ProSign 3 | 100 | |
| tiser | Modular Arithmetic 2 | 20 | |
| tiser | Modular Arithmetic 1 | 20 | |
| PhantomStrike007 | Finding Flags | 2 | |
| tiser | Extended GCD | 20 | |
| liiiu_m_ | Computing Shared Secrets | 30 | |
| HenriP | Great Snakes | 3 | |
| beepboopx | Round Keys | 20 | |
| HenriP | Finding Flags | 2 | |
| cosminradu2603 | Chinese Remainder Theorem | 40 | |
| nghiacblk5 | Parameter Injection | 60 | |
| liiiu_m_ | Computing Public Values | 25 | |
| 0xMinhT | Working with Fields | 10 | |
| Samuel000 | ECB CBC WTF | 55 | |
| liiiu_m_ | Generators of Groups | 20 | |
| 0xMinhT | Modulus Inutilis | 50 | |
| liiiu_m_ | Working with Fields | 10 | |
| liiiu_m_ | Modulus Inutilis | 50 | |
| 0xShad3s | XOR Starter | 10 | |
| liiiu_m_ | Salty | 20 | |
| 0xShad3s | Bytes and Big Integers | 10 | |
| no4h | Legendre Symbol | 35 | |
| Vsevolod_Ishy | You either know, XOR you don't | 30 | |
| Vsevolod_Ishy | Favourite byte | 20 | |
| Vsevolod_Ishy | XOR Properties | 15 | |
| liiiu_m_ | Manyprime | 40 | |
| Vsevolod_Ishy | XOR Starter | 10 | |
| 0xMinhT | Salty | 20 | |
| 0xShad3s | Base64 | 10 | |
| Vsevolod_Ishy | Bytes and Big Integers | 10 | |
| methiri | Finding Flags | 2 | |
| Vsevolod_Ishy | Base64 | 10 | |
| Vsevolod_Ishy | Hex | 5 | |
| Vsevolod_Ishy | ASCII | 5 | |
| Vsevolod_Ishy | Great Snakes | 3 | |
| Vsevolod_Ishy | Finding Flags | 2 | |
| liiiu_m_ | Monoprime | 30 | |
| koukou | Hex | 5 | |
| 0xShad3s | Hex | 5 | |
| 0xShad3s | ASCII | 5 | |
| Zuzi | Finding Flags | 2 | |
| fri3m4 | Greatest Common Divisor | 15 | |
| liiiu_m_ | Factoring | 15 | |
| beepboopx | Structure of AES | 15 | |
| np0909 | Montgomery's Ladder | 40 |
You are now level Current level