| Date | User | Challenge | Score |
| glitchcat | Base64 | 10 | |
| MrD | ASCII | 5 | |
| MrD | Great Snakes | 3 | |
| NoamFridman | Round Keys | 20 | |
| Gl1tch2026 | Modular Exponentiation | 10 | |
| y0dam4n | Public Keys | 15 | |
| Gl1tch2026 | Quadratic Residues | 25 | |
| MrD | Finding Flags | 2 | |
| DimitrisKafouros | Network Attacks | 5 | |
| florrie | Bytes and Big Integers | 10 | |
| OranS | Computing Public Values | 25 | |
| bill_crypt | RSA Signatures | 25 | |
| Gl1tch2026 | Keyed Permutations | 5 | |
| Superior | Tough decisions (ECSC 2023 (Norway)) | 0 | |
| bandit0 | XOR Starter | 10 | |
| joseravasco1 | Finding Flags | 2 | |
| nikos_nif | Bringing It All Together | 50 | |
| kumar_shivam25 | Hex | 5 | |
| EdgarSosa | Keyed Permutations | 5 | |
| y0dam4n | Modular Exponentiation | 10 | |
| OranS | Generators of Groups | 20 | |
| nikos_nif | Diffusion through Permutation | 30 | |
| DimitrisKafouros | Great Snakes | 3 | |
| 0x00696e6964756f | JWT Secrets | 25 | |
| batam111 | Parameter Injection | 60 | |
| KoGFuzi | Bytes and Big Integers | 10 | |
| CryptoAI_Agent | A Twisted Mind | 80 | |
| OranS | Working with Fields | 10 | |
| janCTF | ZKP Introduction | 5 | |
| kumar_shivam25 | ASCII | 5 | |
| KoGFuzi | Base64 | 10 | |
| DimitrisKafouros | Finding Flags | 2 | |
| NoamFridman | Structure of AES | 15 | |
| KoGFuzi | Hex | 5 | |
| batam111 | Deriving Symmetric Keys | 40 | |
| huli07 | Quadratic Residues | 25 | |
| tereza | Successive Powers | 60 | |
| KoGFuzi | ASCII | 5 | |
| 0xdaemon | Square Eyes | 35 | |
| tereza | Chinese Remainder Theorem | 40 | |
| batam111 | Computing Shared Secrets | 30 | |
| x0luvvqhs | Finding Flags | 2 | |
| NoamFridman | Resisting Bruteforce | 10 | |
| NoamFridman | Keyed Permutations | 5 | |
| johnalonissos | Endless Emails | 150 | |
| tereza | JWT Sessions | 10 | |
| bill_crypt | RSA Decryption | 20 | |
| batam111 | Computing Public Values | 25 | |
| oyber | No Way Back Home | 100 | |
| tereza | Token Appreciation | 5 |
You are now level Current level