说明：  Step 1: Generating a Parameter Set for the Diffie‐Hellman Key Agreement Algorithm Step 2: Generating a Secret Key Using the Diffie‐Hellman Key Agreement Algorithm Step 3: Use UDP to exchange DH public key Step 4: Establish an AES‐256 encrypted channel using UDP and deliver one encrypted file Step 5: Establish an AES‐256 encrypted channel using TCP and deliver one encrypted file
(Step 1: Generating a Parameter Set for the Diffie‐Hellman Key Agreement Algorithm Step 2: Generating a Secret Key Using the Diffie‐Hellman Key Agreement Algorithm Step 3: Use UDP to exchange DH public key Step 4: Establish an AES‐256 encrypted channel using UDP and deliver one encrypted file Step 5: Establish an AES‐256 encrypted channel using TCP and deliver one encrypted file)