{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11265167","patent":{"patent_number":"US-11265167","title":"Methods and systems for network security using a cryptographic firewall","assignee":null,"inventors":[],"filing_date":"2020-10-21T00:00:00.000Z","publication_date":"2022-03-01T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"A method is performed at a security device. The method includes establishing a network connection with a client system. After establishing the network connection, the security device receives a first packet from the client system. The first packet includes an identifier, a first counter value, and a first one-time password hash generated by the client system. Based on the identifier received, the security device retrieves from a trusted data store the seed and a second counter value. If the first counter value is larger than the second counter value, the security device generates a second one-time password hash based on the identifier, the first counter value, and the seed. In accordance with a determination that the first and second one-time password hashes match, the security device grants, to the client system, access to one or more network resources protected by the security device via the network connection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and systems for network security using a cryptographic firewall","description":"A method is performed at a security device. The method includes establishing a network connection with a client system. After establishing the network connection, the security device receives a first ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11265167","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-11265167","citation_suggestion":"Patentable. \"Methods and systems for network security using a cryptographic firewall\" (US-11265167). https://patentable.app/patents/US-11265167","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11265167","json":"https://patentable.app/api/llm-context/US-11265167","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T22:13:33.448Z"}