{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11233662","patent":{"patent_number":"US-11233662","title":"Keyless encrypting schemes using physical unclonable function devices","assignee":null,"inventors":[],"filing_date":"2019-12-23T00:00:00.000Z","publication_date":"2022-01-25T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":20,"abstract":"Systems and methods of encrypted communication between a server and client devices using keyless encryption schemes are disclosed. Client devices with arrays of physical-unclonable-function devices respond to challenges from a server. Characteristics of the arrays are stored by the server during a secure enrollment process. Subsequently, the server issues challenges to the clients. The clients derive a ciphertext according to a variable cipher scheme determined using responses to the challenges issued by the server using characteristics of portions of the arrays specified by the challenges. The server and clients may independently determine encryption and decryption procedures using characteristics of the arrays."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Keyless encrypting schemes using physical unclonable function devices","description":"Systems and methods of encrypted communication between a server and client devices using keyless encryption schemes are disclosed. Client devices with arrays of physical-unclonable-function devices re","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11233662","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-11233662","citation_suggestion":"Patentable. \"Keyless encrypting schemes using physical unclonable function devices\" (US-11233662). https://patentable.app/patents/US-11233662","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11233662","json":"https://patentable.app/api/llm-context/US-11233662","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:35:08.640Z"}