A small and insanely fast ARCFOUR (RC4) cipher implementation of Python.
- Strongly focused on performance; entire source code is written in C.
- Easily installable; single file with no dependency.
Below is benchmark metrics against 3 major RC4 implementations.
arc4 is 67 % faster than the de facto PyCrypto library. Also, 1889 % faster than pure-Python rc4 library.
| arc4 | 0.332659006119 |
| PyCrypto | 0.544879198074 |
| rc4 | 6.60579204559 |
The whole benchmark code is in ./benchmark.py.
Install from PyPI:
pip install arc4
Or clone the repo and do install:
git clone https://github.com/manicmaniac/arc4.git cd arc4 python setup.py install
from arc4 import ARC4
arc4 = ARC4('key')
cipher = arc4.encrypt('some plain text to encrypt')Because RC4 is a stream cipher, you must initialize RC4 object in the beginning of each operations.
arc4 = ARC4('key')
arc4.decrypt(cipher)python -m unittest discoverThis software is under the MIT License.