{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9628277","patent":{"patent_number":"US-9628277","title":"Methods, systems and apparatus to self authorize platform code","assignee":null,"inventors":[],"filing_date":"2015-10-05T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","G06F","G06F","H04L","H04L","H04L","G06F"],"num_claims":18,"abstract":"Methods and apparatus are disclosed to self authorize platform code. A disclosed example apparatus to verify safety of a policy data structure (PDS) of a computing platform includes a processor and a memory including instructions that, when executed, cause the processor to, at least retrieve a hash of a PDS stored in a Trusted Platform Module (TPM), the PDS stored in the TPM at a first time and indicative of a combination of platform control registers (PCRs) to be used with the platform, calculate a hash of a PDS associated with platform update code in response to a platform code update request at a second time; and verify the hash of the PDS associated with the platform update code is safe when (a) the comparison between the hash of the PDS associated with the platform update code matches the hash of the PDS in the TPM and (b) the combination of the PCRs in the PDS stored in the TPM at the first time matches a combination of PCRs represented in the platform update code at the second time."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods, systems and apparatus to self authorize platform code","description":"Methods and apparatus are disclosed to self authorize platform code. A disclosed example apparatus to verify safety of a policy data structure (PDS) of a computing platform includes a processor and a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9628277","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-9628277","citation_suggestion":"Patentable. \"Methods, systems and apparatus to self authorize platform code\" (US-9628277). https://patentable.app/patents/US-9628277","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9628277","json":"https://patentable.app/api/llm-context/US-9628277","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:08:08.776Z"}