{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9705672","patent":{"patent_number":"US-9705672","title":"Key management method and system","assignee":null,"inventors":[],"filing_date":"2014-01-23T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":10,"abstract":"Disclosed are a key management method and system. A master key is remotely downloaded to avoid the problem that the master key is not issued to a merchant until the master key needs be downloaded on a POS terminal, so as to reduce logistics costs and maintenance costs. When a key is remotely downloaded, a KMS system uses a symmetric algorithm to encrypt the key to be transmitted to ensure that the encrypted key can only be decrypted by a corresponding POS terminal, thereby ensuring the security of data transmission. During bidirectional authentication, an application program of the POS terminal can only contact an encrypted text form of the key instead of a plain text key needing to be remotely downloaded to the POS terminal, thereby ensuring security in reproduction."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Key management method and system","description":"Disclosed are a key management method and system. A master key is remotely downloaded to avoid the problem that the master key is not issued to a merchant until the master key needs be downloaded on a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9705672","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-9705672","citation_suggestion":"Patentable. \"Key management method and system\" (US-9705672). https://patentable.app/patents/US-9705672","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9705672","json":"https://patentable.app/api/llm-context/US-9705672","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:14:36.434Z"}