A little bitwise cryptographic tool
lilcrypto does XOR and XNOR coding for you with given input file, key, and chunk size. It also has an option for key generation of given byte size so that you can use it for one-time-pad encryption, otherwise the key is applied recursively with good old remainder division. It can encrypt very large files too efficiently. Works both with automated command line arguments and in human-friendly argumentless mode.
Compiled binary for macOS, console application. C++17 features. Version 1.0.