I know client use public key encrypt data send to servver, then server use private key decrypt it, only private key can decrypt it, so it is safe.
But how server send data to client? use what to encrypt the data?
I know client use public key encrypt data send to servver, then server use private key decrypt it, only private key can decrypt it, so it is safe.
But how server send data to client? use what to encrypt the data?