{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9628481","patent":{"patent_number":"US-9628481","title":"Method of providing fresh keys for message authentication","assignee":null,"inventors":[],"filing_date":"2015-11-17T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":24,"abstract":"The present invention provides a method of operating a mobile unit in a wireless communication system. Embodiments of the method may include providing access request message(s) including information indicative of a first counter and a message authentication code formed using a first key. The first key is derived from a second key and the first counter. The second key is derived from a third key established for a security session between the mobile unit and an authenticator. The first counter is incremented in response to each access request provided by the mobile unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of providing fresh keys for message authentication","description":"The present invention provides a method of operating a mobile unit in a wireless communication system. Embodiments of the method may include providing access request message(s) including information i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9628481","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-9628481","citation_suggestion":"Patentable. \"Method of providing fresh keys for message authentication\" (US-9628481). https://patentable.app/patents/US-9628481","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9628481","json":"https://patentable.app/api/llm-context/US-9628481","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:46:28.737Z"}