Generate an encryption protocol
The encryption protocol consists of the following steps: 1) Agreement on a secret key, 2) Encryption of the plaintext using the secret key, 3) Decryption of the ciphertext with the secret key, 4) Verification of the plaintext, and 5) Notification of successful decryption.
The protocol will involve exchanging a series of encrypted messages between the sender and the receiver. The sender will use a different encryption key with each message to encode the message in a way only the receiver will be able to understand. The sender will also hold on to the keys, ensuring that only the intended recipient can unlock the message. The receiver should verify the sender's identity before releasing the message contents. This will ensure secure communication between sender and receiver.