Public Key Cryptography

Our previous example illustrated a one way relationship where we could give our public key to someone and they could then use it to transmit data that only we could decrypt.

Getting a two way relationship is very simple, both parties generate a public/private key pair, hang onto their private keys and transmit the public key to the other party. Each party now uses the others public key to encrypt the data which is being sent to them. So we now have a fully secure two way link.

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