The challenger will receive a prefix and number n representing difficulty. He has to compute an answer such that sha256(prefix + answer) has n leading zero bits.
This PoW is used in Balsn CTF 2019.
We support various languages to help you solve the obnoxious PoW.
- Python 2
- Python 3
- NodeJs
- Browser-based
- Ruby
- Go (contributed by Lee Xun)
- Rust
- C/C++
- Java
powser.py: A IP-based PoW server module implemented in Python 3.8. Suitable for web challenges.nc_powser.py: A simple PoW server module implemented in Python 3.8. Suitable for nc-based challenges.