CTF Crypto/Pwn/Rev Solver Needed
Budget: $10 – $30 USD
I’m working on a Capture-the-Flag puzzle that hinges on defeating a custom crypto scheme via a chosen-ciphertext attack. The goal is simple: recover the flag and document the full break so I can reproduce it.
You’ll get the encrypted material, the oracle endpoint that accepts arbitrary ciphertexts, and any ancillary scripts I’ve gathered. Feel free to bring whatever tools you prefer—Python, SageMath, pwntools, even straight OpenSSL—so long as the final outcome is clear.
Deliverables I need from you:
-the flag you solved
If you’re comfortable with modern cryptanalysis techniques and can move quickly, let’s dive in—this challenge is ready to be cracked today.
You’ll get the encrypted material, the oracle endpoint that accepts arbitrary ciphertexts, and any ancillary scripts I’ve gathered. Feel free to bring whatever tools you prefer—Python, SageMath, pwntools, even straight OpenSSL—so long as the final outcome is clear.
Deliverables I need from you:
-the flag you solved
If you’re comfortable with modern cryptanalysis techniques and can move quickly, let’s dive in—this challenge is ready to be cracked today.