{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8509443","patent":{"patent_number":"US-8509443","title":"Rekey index generation method and rekey index generation apparatus","assignee":null,"inventors":[],"filing_date":"2007-05-14T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":19,"abstract":"A rekey index generation method and a rekey index generation apparatus are provided. The rekey index generation method includes inserting join information to a first field of a rekey index when new members join a group; and inserting node numbers, corresponding to each of the new members, into a second field of the rekey index for a receiver to select a necessary key from among transmitted encoded keys."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Rekey index generation method and rekey index generation apparatus","description":"A rekey index generation method and a rekey index generation apparatus are provided. The rekey index generation method includes inserting join information to a first field of a rekey index when new me","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8509443","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-8509443","citation_suggestion":"Patentable. \"Rekey index generation method and rekey index generation apparatus\" (US-8509443). https://patentable.app/patents/US-8509443","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8509443","json":"https://patentable.app/api/llm-context/US-8509443","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:12:46.366Z"}