{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11475131","patent":{"patent_number":"US-11475131","title":"Hypervisor level signature checks for encrypted trusted execution environments","assignee":null,"inventors":[],"filing_date":"2020-01-27T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":18,"abstract":"A system includes a hypervisor, a memory, and boot firmware stored in the memory. The boot firmware is configured to execute on a processor to load a trusted code that includes a condition checker from the hypervisor, check a signature of the trusted code, and verify the signature is trusted by a guest. The boot firmware is also configured to load the trusted code into an encrypted memory at a known guest address. The hypervisor is configured to protect the known guest address. The trusted code includes a first instruction, one or more intermediate instructions, and a final instruction. The first instruction and the final instruction are exits to the hypervisor. The hypervisor is also configured to execute the condition checker and detect an inconsistency in guest memory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Hypervisor level signature checks for encrypted trusted execution environments","description":"A system includes a hypervisor, a memory, and boot firmware stored in the memory. The boot firmware is configured to execute on a processor to load a trusted code that includes a condition checker fro","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11475131","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-11475131","citation_suggestion":"Patentable. \"Hypervisor level signature checks for encrypted trusted execution environments\" (US-11475131). https://patentable.app/patents/US-11475131","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11475131","json":"https://patentable.app/api/llm-context/US-11475131","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T19:17:07.738Z"}