yucan
1108th place
4 points
Solves
| Challenge | Category | Value | Time |
|---|---|---|---|
| [☆☆☆] Advanced Decryption Standard - easy like counting up to three | Cryptography | 1 | |
| [☆☆☆] Advanced Decryption Standard - Blockchain | Cryptography | 1 | |
| [☆☆☆] Advanced Decryption Standard - Codebook | Cryptography | 1 | |
| [☆☆☆] First Contact - Hard choices | Forensics | 1 |