PurrCrypt: Encrypt Data as Pet Sounds With Real ECC
What if you could encrypt a file and the ciphertext looked like a cat had a keyboard tantrum — but with actual secp256k1 elliptic curve math underneath? That’s exactly what PurrCrypt does. After testing it on two operating systems, we found it surprisingly usable for a project that takes itself this unseriously. What Is PurrCrypt? PurrCrypt (622 stars on GitHub, MIT license) is a Rust CLI tool that encrypts files using elliptic curve cryptography — the same secp256k1 curve behind Bitcoin. It then encodes the output as sequences of cat or dog vocalizations. So it’s steganography meets public-key encryption: the ciphertext looks like pet-sound spam to anyone who intercepts it. But only the intended recipient can decrypt it back to the original file. This approach is a different angle on privacy — similar to how multi-hop VPN tunnels add layers of protection to network traffic, PurrCrypt adds them to stored data. ...