{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11520891","patent":{"patent_number":"US-11520891","title":"Secure boot of an integrated circuit","assignee":null,"inventors":[],"filing_date":"2019-12-11T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","H04L","H04L","H04L"],"num_claims":18,"abstract":"A computer chip, such as an System on chip (SOC), can receive firmware updates having two separate signatures; a first of the signatures is used to authenticate the firmware using a processor within the computer chip, and a second of the signatures is used by a controller, separate from the processor. A first key, used by the processor to authenticate the firmware, can be a boot key that is hardwired in the computer chip. A second key, used by the controller, can be a key that is provided to the controller at any time and is updatable. The controller can suspend the processor so that the controller can perform a first authentication of the firmware using the second signature and the second key. If the authentication is successful, the controller can release the processor, which then uses the first key and the first signature to perform a second authentication."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secure boot of an integrated circuit","description":"A computer chip, such as an System on chip (SOC), can receive firmware updates having two separate signatures; a first of the signatures is used to authenticate the firmware using a processor within t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11520891","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-11520891","citation_suggestion":"Patentable. \"Secure boot of an integrated circuit\" (US-11520891). https://patentable.app/patents/US-11520891","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11520891","json":"https://patentable.app/api/llm-context/US-11520891","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:29:45.174Z"}