Orgalorg
Solves
| Challenge | Category | Value | Time |
| Warm Up | Warm Up | 20 | |
| Simple Diffie-Hellman | None | 20 | |
| Simple RSA | Cryptography | 20 | |
| Shark Of Wire | Forensics | 20 | |
| Shark Of Wire 2 | Forensics | 20 | |
| Flags in ZIP | None | 20 | |
| File Signature | Forensics | 20 | |
| Small-E | None | 20 | |
| Small-E 2 | None | 20 | |
| Wiener's RSA | None | 20 | |
| Simple RSA 2 | Cryptography | 20 | |
| Fermat's RSA | None | 20 | |
| E-CryptoBook Service | Cryptography | 20 |