How to generate RSA keys of any length - very easily - the most important key type in encryption

The basic of optimal encryption is RSA/ECC keys
https://github.com/alanthie/Encryptions
RSA or ECC keys contains a public part that you share with others and a private part that you keep for yourself.

The 2 parts are required to decrypt a message that was encrypted with your public part.

How to generate an arbitrary long RSA key:
./qa
Follow the menus associated with to RSA keys
Here we have generate a 2k bits length key named MY_RSAKEY_2048_2025-02-05_11:00:40
The key is saved in a *.db file.

See next post on how to encrypt/decrypt with a RSA key