{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10491401","patent":{"patent_number":"US-10491401","title":"Verification of code signature with flexible constraints","assignee":null,"inventors":[],"filing_date":"2017-02-21T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","H04L"],"num_claims":19,"abstract":"Systems, apparatuses, and methods for signing, and verifying the signature of, code to be executed by a target device. An example method of determining a verification hash of a code image to be executed by a target device comprises receiving a header and code image, determining an image hash based on metadata and the code image, determining a fuses hash based on values of hardware fuses of the target device, determining an information hash based on information stored in memory, determining a verification hash based on the image hash, the fuses hash, and the information hash, verifying the verification hash against a code signature in the header, obtaining an unlock constant based on the verification hash, comparing the unlock constant with a stored predetermined value to unlock a memory region of the target device, and executing the code in the code image on the target device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Verification of code signature with flexible constraints","description":"Systems, apparatuses, and methods for signing, and verifying the signature of, code to be executed by a target device. An example method of determining a verification hash of a code image to be execut","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10491401","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-10491401","citation_suggestion":"Patentable. \"Verification of code signature with flexible constraints\" (US-10491401). https://patentable.app/patents/US-10491401","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10491401","json":"https://patentable.app/api/llm-context/US-10491401","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:22:04.204Z"}