{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8467527","patent":{"patent_number":"US-8467527","title":"Efficient key derivation for end-to-end network security with traffic visibility","assignee":null,"inventors":[],"filing_date":"2008-12-03T00:00:00.000Z","publication_date":"2013-06-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":13,"abstract":"Both end-to-end security and traffic visibility may be achieved by a system using a controller that derives a cryptographic key that is different for each client based on a derivation key and a client identifier that is conveyed in each data packet. The controller distributes the derivation key to information technology monitoring devices and a server to provide traffic visibility. For large key sizes, the key may be derived using a derivation formula as follows:client_key—MSB=AES128(base_key_1, client_ID),  (1)client_key—LSB=AES128(base_key_2, client_ID+pad), and  (2)client_key=client_key_MSB∥client_key_LSB, where (1) and (2) are executed in parallel. The client key and a client identifier may be used so that end-to-end security may be achieved."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Efficient key derivation for end-to-end network security with traffic visibility","description":"Both end-to-end security and traffic visibility may be achieved by a system using a controller that derives a cryptographic key that is different for each client based on a derivation key and a client","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8467527","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-8467527","citation_suggestion":"Patentable. \"Efficient key derivation for end-to-end network security with traffic visibility\" (US-8467527). https://patentable.app/patents/US-8467527","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8467527","json":"https://patentable.app/api/llm-context/US-8467527","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T10:34:33.414Z"}