{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11520707","patent":{"patent_number":"US-11520707","title":"System on a chip (SoC) communications to prevent direct memory access (DMA) attacks","assignee":null,"inventors":[],"filing_date":"2019-11-25T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06T","H04L","H04W","G06F","H04L","H04W","H04W"],"num_claims":22,"abstract":"This disclosure describes system on a chip (SOC) communications that prevent direct memory access (DMA) attacks. An example SoC includes an encryption engine and a security processor. The encryption engine is configured to encrypt raw input data using a cipher key to form an encrypted payload. The security processor is configured to select the cipher key from a key store holding a plurality of cipher keys based on a channel ID describing a {source subsystem, destination subsystem} tuple for the encrypted payload, to form an encryption header that includes the channel ID, to encapsulate the encrypted payload with the encryption header that includes the channel ID to form a crypto packet, and to transmit the crypto packet to a destination SoC that is external to the SoC."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System on a chip (SoC) communications to prevent direct memory access (DMA) attacks","description":"This disclosure describes system on a chip (SOC) communications that prevent direct memory access (DMA) attacks. An example SoC includes an encryption engine and a security processor. The encryption e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11520707","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-11520707","citation_suggestion":"Patentable. \"System on a chip (SoC) communications to prevent direct memory access (DMA) attacks\" (US-11520707). https://patentable.app/patents/US-11520707","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11520707","json":"https://patentable.app/api/llm-context/US-11520707","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:38:24.649Z"}