Based on LC4 (ElsieFour) encryption algorithm described in this pdf.
Expanded on original algorithm by changing from 6 * 6 (36 character key) to 8 * 8 (64 character key) and utilizing Base64 to encode input.
See Makefile.
Requires:
- MSBuild (VS 2019 or higher)
- 7Zip
- GnuMake
- .NET Framework 4.8