{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11290257","patent":{"patent_number":"US-11290257","title":"Data transfer system and transfer method","assignee":null,"inventors":[],"filing_date":"2019-04-10T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","cpc_codes":["H04L","H04L","G06F","H04L","H04L","H04L","H04L","G06F"],"num_claims":12,"abstract":"To securely realize updating of a key shared between an apparatus on a transmission side and an apparatus on a reception side. A second apparatus encrypts a new shared key by an encryption processing unit, issues a signature for the encrypted new shared key from a signature processing unit, and transmits the signature and the encrypted new shared key to a first apparatus. When a signature processing unit fails in verifying the signature, the first apparatus performs control to prohibit at least one of processing executed after reception of the encrypted new shared key and required to store the new shared key into a storage unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Data transfer system and transfer method","description":"To securely realize updating of a key shared between an apparatus on a transmission side and an apparatus on a reception side. A second apparatus encrypts a new shared key by an encryption processing ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11290257","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-11290257","citation_suggestion":"Patentable. \"Data transfer system and transfer method\" (US-11290257). https://patentable.app/patents/US-11290257","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11290257","json":"https://patentable.app/api/llm-context/US-11290257","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:44:54.725Z"}