{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621689","patent":{"patent_number":"US-9621689","title":"System and method for authenticating a network time protocol (NTP)","assignee":null,"inventors":[],"filing_date":"2014-08-06T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","H04L","H04L","H04L"],"num_claims":17,"abstract":"System and method for determining the updating time by a server presumed to have a correct time and a client needing a correct time. The server can first transmit an unencrypted signal, which may be signed or unsigned. The server can then later encrypt or sign the same packet it transmitted with a private key and transmit it to the client. After the client receives the unencrypted packet, the client can compute a time difference. However the client doesn't update its time until a follow-up packet is received from the server. If encrypted, the packet is decoded with the server's public key, and the decoded packet is shown identical to the received packet and that the identification bits are the same."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for authenticating a network time protocol (NTP)","description":"System and method for determining the updating time by a server presumed to have a correct time and a client needing a correct time. The server can first transmit an unencrypted signal, which may be s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621689","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-9621689","citation_suggestion":"Patentable. \"System and method for authenticating a network time protocol (NTP)\" (US-9621689). https://patentable.app/patents/US-9621689","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621689","json":"https://patentable.app/api/llm-context/US-9621689","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:32:35.219Z"}