{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9640090","patent":{"patent_number":"US-9640090","title":"Cryptographic system and computer readable medium","assignee":null,"inventors":[],"filing_date":"2014-02-24T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":9,"abstract":"A cryptographic system (10) performs a cryptographic process using a basis. B and a basis B*. An encryption device (200) generates a ciphertext including a transmission-side vector being a vector in the basis B and being generated using one vector of a first vector consisting of coefficients yj of a polynomial having xi as roots and a second vector consisting of v1i being a power of v1. A decryption device (300) decrypts the ciphertext generated by the encryption device (200) with a decryption key including a reception-side vector being a vector in the basis B* and being generated using the other vector of the first vector and the second vector."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Cryptographic system and computer readable medium","description":"A cryptographic system (10) performs a cryptographic process using a basis. B and a basis B*. An encryption device (200) generates a ciphertext including a transmission-side vector being a vector in t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9640090","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-9640090","citation_suggestion":"Patentable. \"Cryptographic system and computer readable medium\" (US-9640090). https://patentable.app/patents/US-9640090","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9640090","json":"https://patentable.app/api/llm-context/US-9640090","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:22:41.172Z"}