{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9659425","patent":{"patent_number":"US-9659425","title":"Electronic key for authentication","assignee":null,"inventors":[],"filing_date":"2010-03-19T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["G07F","G06Q","G07F"],"num_claims":14,"abstract":"An electronic key supports a plurality of authentication methods and effectively prevents bidding-down attacks. For this purpose, security information is additionally provided by the electronic key, based on which a card reading device recognizes which authentication methods are supported by the electronic key. When the reading device recognizes based on said information that the electronic key supports a stronger second authentication method, but the authentication method was not recognized by the card reading device, the electronic key is, for example, rejected."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Electronic key for authentication","description":"An electronic key supports a plurality of authentication methods and effectively prevents bidding-down attacks. For this purpose, security information is additionally provided by the electronic key, b","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9659425","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-9659425","citation_suggestion":"Patentable. \"Electronic key for authentication\" (US-9659425). https://patentable.app/patents/US-9659425","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9659425","json":"https://patentable.app/api/llm-context/US-9659425","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:23:48.200Z"}