SSL certificates use something called public-key cryptography.
This particular type of encryption harnesses the power of two keys that are long strings of randomly generated numbers. One is called a private key, and the other is called a public key. A public key is known to the server and available in the public domain. Users can use it to encrypt any message. If Alice is sending a message to Bob, she will lock it with Bob’s public key, but the only way to decrypt it is to unlock it with Bob’s private key. Bob is the only one who has …