{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9843581","patent":{"patent_number":"US-9843581","title":"Hardware root of trust (HROT) for software-defined network (SDN) communications","assignee":null,"inventors":[],"filing_date":"2016-10-24T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"A Software-Defined Network (SDN) determines hardware trust for SDN communications. A probe system transfers probe packets having an originating address, destination address, and Hardware Root-of-Trust (HRoT) reporting parameter. SDN flow controllers receive the probe packets through input interfaces and route the packets from the input interfaces to output interfaces based on the destination address. Responsive to the HRoT reporting parameter, the SDN flow controllers encode SDN flow controller Hardware Identifiers (HW IDs) and transfer response packets that indicate the encoded SDN flow controller HW IDs, the SDN input interfaces, and the SDN output interfaces. The probe system processes the response packets to identify an end-to-end communication path for the originating address and the destination address based on the input interfaces and the output interfaces. The probe system determines hardware trust status for the end-to-end communication path based on the encoded SDN flow controller HW IDs."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Hardware root of trust (HROT) for software-defined network (SDN) communications","description":"A Software-Defined Network (SDN) determines hardware trust for SDN communications. A probe system transfers probe packets having an originating address, destination address, and Hardware Root-of-Trust","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9843581","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9843581","citation_suggestion":"Patentable. \"Hardware root of trust (HROT) for software-defined network (SDN) communications\" (US-9843581). https://patentable.app/patents/US-9843581","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9843581","json":"https://patentable.app/api/llm-context/US-9843581","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:40:05.024Z"}