Edge Gateway Ad-Hoc Link Authentication

The patent applies preliminary action by pre-establishing cryptographic key pairs (public key and private key) for each communication device before ad-hoc communication is needed. When ad-hoc communication is required, devices can immediately exchange public keys and derive session keys without performing complex authentication procedures at that moment, thus achieving fast authentication while maintaining security through pre-configured cryptographic credentials

The patent extracts the complex verification and calculation procedures from the real-time authentication process and moves them to a preliminary setup phase. By separating key generation from key exchange, the patent removes the computational burden from the actual authentication moment, allowing devices to simply exchange public keys and derive session keys without complex messaging and verification procedures

The patent uses public key cryptography as an intermediary mechanism that enables trust establishment between unknown devices. Each device generates its own key pair and shares only the public key with communication partners, while retaining the private key securely. This intermediary public key system allows any device to authenticate any other device without requiring pre-existing trust relationships or complex mutual authentication protocols

The patent applies self-service by enabling each communication device to independently generate its own cryptographic key pair and manage its own authentication credentials. Devices autonomously derive session keys from exchanged public keys using the Diffie-Hellman key agreement method, without requiring external authentication servers or complex multi-party verification procedures, thus simplifying the authentication process while maintaining security