This is a collection of my writeups for challenges in NYP CTF 2019 held on 11 April 2019. I did the challenges after the competition.
| Challenge | Category | Remarks |
|---|---|---|
| Crypto Warmup | Crypto | 50 |
| Bacon cipher | Crypto | 50 |
| Classic cipher | Crypto | 50 |
| polynucleotides | Crypto | 75 |
| Keep on trying | Crypto | 100 |
| Sick Teacher | Crypto | 150 |
| Crypto | 150 | |
| Privilege Hashalation | Crypto | 250 |
| 3-Tier Security | Crypto | 350 |
| Intercepted Visual Hash | Crypto | 500 |
| Special RSA | Crypto | 500 |
| Encoding Warmup | Misc | 50 |
| Talking Computers | Misc | 75 |
| Talking Files | Misc | 75 |
| Talking Octopus | Misc | 100 |
| Agent Piet's Art | Misc | 175 |
| Misc | 200 | |
| Basic Algebra | Misc | 200 |
| What's that gibberish? | Misc | 250 |
| Misc | 250 | |
| Welcome to Uniqlo | Misc | 300 |
| Misc | 300 |