{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11269993","patent":{"patent_number":"US-11269993","title":"Encryption device, encryption method, decryption device, and decryption method","assignee":null,"inventors":[],"filing_date":"2018-05-28T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["G06F","H04L","G06F","G06F","G06F","G06F","H04L","H04L","H04L"],"num_claims":15,"abstract":"There is provided an encryption device that is secure against a side channel attack, and can suppress a processing load. The encryption device includes a data encryption part in which at least part of a plurality of round functions for successively performing encryption processing on an input value is tabulated to be encrypted using a white-box model in which input/output values of the round function is able to be recognized from the outside. Each of the round functions includes a tabulated encryption function for encrypting an input value using a black-box model in which the input/output values are able to be recognized from the outside and an intermediate value is not able to be recognized from the outside, and the encryption function is updated with a random number."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Encryption device, encryption method, decryption device, and decryption method","description":"There is provided an encryption device that is secure against a side channel attack, and can suppress a processing load. The encryption device includes a data encryption part in which at least part of","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11269993","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-11269993","citation_suggestion":"Patentable. \"Encryption device, encryption method, decryption device, and decryption method\" (US-11269993). https://patentable.app/patents/US-11269993","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11269993","json":"https://patentable.app/api/llm-context/US-11269993","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:13:21.113Z"}