| Date | User | Challenge | Score |
| cuccitine | Finding Flags | 2 | |
| RPKBasilisk | Ellipse Curve Cryptography | 125 | |
| UltraDuck | Diffusion through Permutation | 30 | |
| asd123 | Moving Problems | 150 | |
| kimjiwon | Flipping Cookie | 60 | |
| useless | Lemur XOR | 40 | |
| doidwqjdwqid | Base64 | 10 | |
| cloverpass | Network Attacks | 5 | |
| RPKBasilisk | Unencryptable | 125 | |
| RPKBasilisk | No Way Back Home | 100 | |
| RPKBasilisk | Broken RSA | 100 | |
| diesel67 | Modular Arithmetic 1 | 20 | |
| diesel67 | Extended GCD | 20 | |
| diesel67 | Greatest Common Divisor | 15 | |
| diesel67 | You either know, XOR you don't | 30 | |
| diesel67 | Favourite byte | 20 | |
| diesel67 | XOR Properties | 15 | |
| diesel67 | XOR Starter | 10 | |
| validmax | Bytes and Big Integers | 10 | |
| brembo | PriMeD5 | 100 | |
| brembo | Hash Stuffing | 50 | |
| brembo | Collider | 50 | |
| validmax | Base64 | 10 | |
| validmax | Hex | 5 | |
| kris22871 | XOR Starter | 10 | |
| kris22871 | Bytes and Big Integers | 10 | |
| validmax | ASCII | 5 | |
| kris22871 | Base64 | 10 | |
| kris22871 | Hex | 5 | |
| Mumeeth_AM | No Way JOSE | 20 | |
| kris22871 | ASCII | 5 | |
| Mumeeth_AM | JWT Sessions | 10 | |
| Mumeeth_AM | Token Appreciation | 5 | |
| kris22871 | Great Snakes | 3 | |
| rwxerwx | Modular Inverting | 25 | |
| Tjtallman | Signing Server | 60 | |
| kris22871 | Finding Flags | 2 | |
| RPKBasilisk | Modular Binomials | 80 | |
| RPKBasilisk | Adrien's Signs | 80 | |
| RPKBasilisk | Successive Powers | 60 | |
| RPKBasilisk | Common Ground | 75 | |
| Cryptoloid | Finding Flags | 2 | |
| Assem64 | Modular Square Root | 35 | |
| RuyPardo | Finding Flags | 2 | |
| groktopus | Bytes and Big Integers | 10 | |
| groktopus | Base64 | 10 | |
| KOPRO | Great Snakes | 3 | |
| 0k3ll0h | Finding Flags | 2 | |
| RPKBasilisk | Modulus Inutilis | 50 | |
| RPKBasilisk | No Leaks | 100 |
You are now level Current level