{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9721101","patent":{"patent_number":"US-9721101","title":"System wide root of trust chaining via signed applications","assignee":null,"inventors":[],"filing_date":"2013-06-24T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":20,"abstract":"A processing device searches executing at least one of a boot loader or a kernel for the operating system searches for an extensible firmware interface (EFI) binary object. Responsive to finding a first EFI binary object, the processing device verifies that a first signature associated with the first EFI binary object is valid using a platform key. Responsive to verifying that the first signature for the first EFI binary object is valid, the processing device performs the following operations: identifying a first public key encapsulated in the first EFI binary object, wherein the first public key is associated with a non-EFI certificate authority; extracting the first public key from the first EFI binary object; and performing at least one of a) passing the first public key to a kernel of an operating system (OS) or b) exposing the first public key to a user space of the OS."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System wide root of trust chaining via signed applications","description":"A processing device searches executing at least one of a boot loader or a kernel for the operating system searches for an extensible firmware interface (EFI) binary object. Responsive to finding a fir","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9721101","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-9721101","citation_suggestion":"Patentable. \"System wide root of trust chaining via signed applications\" (US-9721101). https://patentable.app/patents/US-9721101","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9721101","json":"https://patentable.app/api/llm-context/US-9721101","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:20:10.348Z"}