{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8509447","patent":{"patent_number":"US-8509447","title":"Method and system for distributing cryptographic keys in a hierarchized network","assignee":null,"inventors":[],"filing_date":"2008-11-13T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["H04L"],"num_claims":10,"abstract":"A method is presented for distributing cryptographic keys in a hierarchized network including at least one device in charge of a higher group of devices, wherein at least one of the devices of the higher group of devices is also in charge of a lower group of devices. The method includes the steps of: a) storing a set of identifiers particular to the higher group, an identifier particular to the device in charge, an identifier per device in charge of a lower group, each identifier being unique; storing a root cryptographic key; c) providing a root cryptographic key to each device in charge of a lower group using a first non-reversible cryptographic function; d) providing at least one transport cryptographic key to each member of said higher group of devices using a second non-reversible cryptographic function."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and system for distributing cryptographic keys in a hierarchized network","description":"A method is presented for distributing cryptographic keys in a hierarchized network including at least one device in charge of a higher group of devices, wherein at least one of the devices of the hig","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8509447","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-8509447","citation_suggestion":"Patentable. \"Method and system for distributing cryptographic keys in a hierarchized network\" (US-8509447). https://patentable.app/patents/US-8509447","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8509447","json":"https://patentable.app/api/llm-context/US-8509447","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:52:05.091Z"}