{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9813244","patent":{"patent_number":"US-9813244","title":"Distributed proactive password-based secret sharing","assignee":null,"inventors":[],"filing_date":"2015-12-30T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"Distributed proactive threshold password-based secret sharing schemes are provided. An exemplary method comprises obtaining a difference between updated and prior values of a share for at least one fixed-share party. The updated value comprises a fixed share that is one of a plurality of shares of a secret held by a plurality of parties. A fixed-share party randomly selects a first correction polynomial employed by a polynomial-based secret sharing scheme such that at least one polynomial coefficient corresponding to the fixed-share party is a value that depends on the difference. A non-fixed-share party randomly selects a second correction polynomial such that at least one corresponding polynomial coefficient corresponding to the non-fixed-share party is approximately zero. A polynomial coefficient of the second correction polynomial is obtained from the non-fixed-share party and the fixed share is updated by combining the prior value of the share with the at least one corresponding polynomial coefficient of the first correction polynomial and the polynomial coefficient of the second correction polynomial."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Distributed proactive password-based secret sharing","description":"Distributed proactive threshold password-based secret sharing schemes are provided. An exemplary method comprises obtaining a difference between updated and prior values of a share for at least one fi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9813244","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-9813244","citation_suggestion":"Patentable. \"Distributed proactive password-based secret sharing\" (US-9813244). https://patentable.app/patents/US-9813244","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9813244","json":"https://patentable.app/api/llm-context/US-9813244","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:30:03.581Z"}