Techniques are described herein for sophisticated authentication and encryption methods that do not require manual configuration or a centralized server. These techniques use blockchain and public key cryptography to exchange Media Access Control security (MACsec) keys securely between router links and thereby by avoid manual configuration for MACsec. This simplifies existing MACsec key configuration approaches, which use static security mode with manually-configured security keys and dynamic security mode with keys distributed from a centralized Authentication, Authorization, and Accounting (AAA) server over Extensible Authentication Protocol Transport Layer Security (EAP-TLS).
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M, Niranjan M.; Kenchaiah, Nagaraj; and Kothamasu, Vijay, "MEDIA ACCESS CONTROL SECURITY KEY DISTRIBUTION USING BLOCKCHAIN AND PUBLIC KEY CRYPTOGRAPHY", Technical Disclosure Commons, (October 30, 2019)