{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8498412","patent":{"patent_number":"US-8498412","title":"Method of providing an encrypted data stream","assignee":null,"inventors":[],"filing_date":"2007-03-21T00:00:00.000Z","publication_date":"2013-07-30T00:00:00.000Z","cpc_codes":["H04L","H04N","H04L"],"num_claims":32,"abstract":"A method of providing an encrypted data stream, includes obtaining a first data stream, partitioned into sections corresponding to key periods, each of a plurality of the key periods being associated with a respective value of a key, wherein each section corresponding to a key period associated with a value of the key includes at least one encrypted data unit decryptable using that associated key value, obtaining a sequence of key messages, at least some of which carry key information for obtaining at least one of the key values, obtaining a replacement data stream section, forming an encrypted output data stream, corresponding at least partially to the first data stream, by inserting the replacement data stream section so as to replace a corresponding part of the first data stream with a tail end of the replacement data stream section preceding at least part of a section of the first stream corresponding to a certain key period, and providing as output the encrypted output data stream in synchrony with an associated stream of key messages. A key message carrying key information for obtaining the key value associated with the certain key period is included in the stream of key messages so as to coincide with a point of the encrypted output data stream preceding the tail end of the replacement data stream section."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of providing an encrypted data stream","description":"A method of providing an encrypted data stream, includes obtaining a first data stream, partitioned into sections corresponding to key periods, each of a plurality of the key periods being associated ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8498412","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-8498412","citation_suggestion":"Patentable. \"Method of providing an encrypted data stream\" (US-8498412). https://patentable.app/patents/US-8498412","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8498412","json":"https://patentable.app/api/llm-context/US-8498412","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T22:17:09.873Z"}