C++ public key encryption example!

Hi, I need a simple cryptography example of the PKI in C++, just a simple CLI so I can enter person's name, then the program generates [login to view URL] and [login to view URL] using a legit RSA key pair method, then ask the user to enter a message to encrypt it using the public key we just generated, and display the encrypted text, then assume it was sent to us by someone else and display the original text after decrypting it with the private key. I'm trying to get my head around the concept of it and need a plain generic example not a real product. Thanks