{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9768963","patent":{"patent_number":"US-9768963","title":"Methods and systems for secure user authentication","assignee":null,"inventors":[],"filing_date":"2011-02-02T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H04L"],"num_claims":19,"abstract":"Methods and systems for secure user authentication using a OTP involve, for example, pre-storing a OTP application on a first computing device for generating a valid OTP value for the user responsive to receiving entry of a valid PIN value of the user, no part of the valid PIN value is stored on the first computing device and pre-storing on a back-end server the valid PIN value and a valid shared secret for the user. Upon receiving entry of a purported PIN value of the user, a purported shared secret is dynamically synthesized on the first computing device by the OTP application based on the purported PIN value of the user and a purported OTP value is generated on the first computing device. When entry of the purported OTP value is received by the back-end server in an attempt to log on the back-end server from a second computing device, the back-end server cryptographically calculates a window of OTP values, and log on to the back-end server from the second computing device is allowed if the calculated window of OTP values corresponds to the received OTP value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and systems for secure user authentication","description":"Methods and systems for secure user authentication using a OTP involve, for example, pre-storing a OTP application on a first computing device for generating a valid OTP value for the user responsive ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9768963","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-9768963","citation_suggestion":"Patentable. \"Methods and systems for secure user authentication\" (US-9768963). https://patentable.app/patents/US-9768963","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9768963","json":"https://patentable.app/api/llm-context/US-9768963","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:05:01.424Z"}