{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9787480","patent":{"patent_number":"US-9787480","title":"Applying circuit delay-based physically unclonable functions (PUFs) for masking operation of memory-based PUFs to resist invasive and clone attacks","assignee":null,"inventors":[],"filing_date":"2013-08-23T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["H04L","G06F","H04L","H04L","H04L","H04L"],"num_claims":31,"abstract":"One feature pertains to generating a unique identifier for an electronic device by combining static random access memory (SRAM) PUFs and circuit delay based PUFs (e.g., ring oscillator (RO) PUFs, arbiter PUFs, etc.). The circuit delay based PUFs may be used to conceal either a challenge to, and/or response from, the SRAM PUFs, thereby inhibiting an attacker from being able to clone a memory device's response."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Applying circuit delay-based physically unclonable functions (PUFs) for masking operation of memory-based PUFs to resist invasive and clone attacks","description":"One feature pertains to generating a unique identifier for an electronic device by combining static random access memory (SRAM) PUFs and circuit delay based PUFs (e.g., ring oscillator (RO) PUFs, arbi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9787480","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-9787480","citation_suggestion":"Patentable. \"Applying circuit delay-based physically unclonable functions (PUFs) for masking operation of memory-based PUFs to resist invasive and clone attacks\" (US-9787480). https://patentable.app/patents/US-9787480","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9787480","json":"https://patentable.app/api/llm-context/US-9787480","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:52:41.517Z"}