{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11271759","patent":{"patent_number":"US-11271759","title":"Secure digital signatures using physical unclonable function devices with reduced error rates","assignee":null,"inventors":[],"filing_date":"2019-09-04T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","G06F","H04L","H04L"],"num_claims":20,"abstract":"Systems and methods for securing blockchain and other cryptographically signed ledgers are disclosed. Client devices with arrays of physical-unclonable-function devices are 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 and receives responses generated by the clients from characteristics of portions of the arrays specified by the challenges. The challenge responses are used to authenticate the clients and are also used as cryptographic private keys for signing transaction blocks. Public keys corresponding to the private keys are generated allowing signed transaction blocks to be validated as well as allowing clients originating the transactions to be authenticated by other clients. Ternary PUF characterization schemes are used to achieve acceptable authentication error rates."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secure digital signatures using physical unclonable function devices with reduced error rates","description":"Systems and methods for securing blockchain and other cryptographically signed ledgers are disclosed. Client devices with arrays of physical-unclonable-function devices are respond to challenges from ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11271759","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-11271759","citation_suggestion":"Patentable. \"Secure digital signatures using physical unclonable function devices with reduced error rates\" (US-11271759). https://patentable.app/patents/US-11271759","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11271759","json":"https://patentable.app/api/llm-context/US-11271759","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:35:33.148Z"}