{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9755840","patent":{"patent_number":"US-9755840","title":"Backup and invalidation of authentication credentials","assignee":null,"inventors":[],"filing_date":"2015-05-22T00:00:00.000Z","publication_date":"2017-09-05T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":16,"abstract":"A method for a re-issuance of an attribute-based credential of an issuer of the attribute-based credential for a user may be provided. The user is holding backup values derived from a first credential previously obtained from the issuer, wherein the first credential is built using at least a first value of at least one authentication pair. The method comprises receiving by the issuer from the user a set of values derived from the backup values comprising a second value of the at least one authentication pair, validating by the issuer that the second value is a valid authentication answer with respect to the first value and whether the set of values was derived from a valid first credential, and providing by the issuer a second credential to the user based on the first set of values."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Backup and invalidation of authentication credentials","description":"A method for a re-issuance of an attribute-based credential of an issuer of the attribute-based credential for a user may be provided. The user is holding backup values derived from a first credential","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9755840","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-9755840","citation_suggestion":"Patentable. \"Backup and invalidation of authentication credentials\" (US-9755840). https://patentable.app/patents/US-9755840","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9755840","json":"https://patentable.app/api/llm-context/US-9755840","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:35:58.819Z"}