A tool to calculate the entropy of a file
Four methods are implemented:
- Bytes frequency which is the most used method
- GZip compression which is more often used in the academic world and which tend to give a better estimate on most files.
- LZMA compression which is similar to GZip method but uses LZMA compression insteaf
- Minimum of all above methods
A conservative approach is to take the minimum value returned by the three first methods.
