{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9734092","patent":{"patent_number":"US-9734092","title":"Secure support for I/O in software cryptoprocessor","assignee":null,"inventors":[],"filing_date":"2015-03-19T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":20,"abstract":"Methods and systems for securing sensitive data from security risks associated with direct memory access (“DMA”) by input/output (“I/O”) devices are provided. An enhanced software cryptoprocessor system secures sensitive data using various techniques, including (1) protecting sensitive data by preventing DMA by an I/O device to the portion of the cache that stores the sensitive data, (2) protecting device data by preventing cross-device access to device data using DMA isolation, and (3) protecting the cache by preventing the pessimistic eviction of cache lines on DMA writes to main memory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secure support for I/O in software cryptoprocessor","description":"Methods and systems for securing sensitive data from security risks associated with direct memory access (“DMA”) by input/output (“I/O”) devices are provided. An enhanced software cryptoprocessor syst","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9734092","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-9734092","citation_suggestion":"Patentable. \"Secure support for I/O in software cryptoprocessor\" (US-9734092). https://patentable.app/patents/US-9734092","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9734092","json":"https://patentable.app/api/llm-context/US-9734092","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:22:12.120Z"}