{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11516195","patent":{"patent_number":"US-11516195","title":"Terminal device, key distribution management device, server-client system, communication method, and programs","assignee":null,"inventors":[],"filing_date":"2017-06-08T00:00:00.000Z","publication_date":"2022-11-29T00:00:00.000Z","cpc_codes":["H04L","H04L","G06F","G06F","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04W"],"num_claims":8,"abstract":"To provide a terminal device that can share a session key for use in encryption communication with multiple terminal devices at a certain timing without relying on an existing server device. The terminal device includes: a list/request sending unit that, when the terminal device operates as an owner device, generates a key distribution request, signs the key distribution request, and transmits the key distribution request to a key distribution management device; a participation request sending unit that, when the terminal device operates as a general device, generates a participation request, signs the participation request, and transmits the participation request to the key distribution management device; a session key generating unit that executes an authentication-based multipoint key distribution algorithm of server-client type in cooperation with another terminal device participating in the session and with the key distribution management device to generate a session key; and a post-confirmation unit that, when the session key has been normally generated, transmits a success notice to the key distribution management device and receives a collective notice from the key distribution management device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Terminal device, key distribution management device, server-client system, communication method, and programs","description":"To provide a terminal device that can share a session key for use in encryption communication with multiple terminal devices at a certain timing without relying on an existing server device. The termi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11516195","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-11516195","citation_suggestion":"Patentable. \"Terminal device, key distribution management device, server-client system, communication method, and programs\" (US-11516195). https://patentable.app/patents/US-11516195","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11516195","json":"https://patentable.app/api/llm-context/US-11516195","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T00:38:00.762Z"}