{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8477946","patent":{"patent_number":"US-8477946","title":"Method and apparatus for protecting encryption keys in a logically partitioned computer system environment","assignee":null,"inventors":[],"filing_date":"2008-02-27T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["H04L","G06F"],"num_claims":17,"abstract":"In a logically partitioned computer system, a partition manager maintains and controls master encryption keys for the different partitions. Preferably, processes executing within a partition have no direct access to real memory, addresses in the partition's memory space being mapped to real memory by the partition manager. The partition manager maintains master keys at real memory addresses inaccessible to processes executing in the partitions. Preferably, a special hardware register stores a pointer to the current key, and is read only by a hardware crypto-engine to encrypt/decrypt data. The crypto-engine returns the encrypted/decrypted data, but does not output the key itself or its location."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for protecting encryption keys in a logically partitioned computer system environment","description":"In a logically partitioned computer system, a partition manager maintains and controls master encryption keys for the different partitions. Preferably, processes executing within a partition have no d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8477946","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-8477946","citation_suggestion":"Patentable. \"Method and apparatus for protecting encryption keys in a logically partitioned computer system environment\" (US-8477946). https://patentable.app/patents/US-8477946","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8477946","json":"https://patentable.app/api/llm-context/US-8477946","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:14:14.351Z"}