Cryptography, public key and private key

[fisico30]

Hello Forum,

If Alice wants to send a secret message to Bob, she has to encrypt it first to keep the message secure.

Who issues the public key in this case and who uses the private key?

thanks
fisico30

 

[Borek]

Have you checked usual sources, like wikipedia? Or any pages shown by Google when you search for "public key" or "private key"?