{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11956345","patent":{"patent_number":"US-11956345","title":"DPA-resistant key derivation function","assignee":null,"inventors":[],"filing_date":"2020-04-30T00:00:00.000Z","publication_date":"2024-04-09T00:00:00.000Z","cpc_codes":["G06F","H04L","H04L"],"num_claims":25,"abstract":"Aspects of the present disclosure involve a method and a system to support execution of the method to obtain a first N cryptographic key, receive a key diversification information comprising a first plurality of bits, obtain an expanded key diversification information (EKDI) comprising a second plurality of bits, wherein a number of bits in the second plurality of bits is greater than a number of bits in the first plurality of bits, and wherein a value of each bit of the second plurality of bits is deterministically obtained in view of values of the first plurality of bits, and apply, by the processing device, a key derivation function to the first cryptographic key and the EKDI to obtain a second cryptographic key."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"DPA-resistant key derivation function","description":"Aspects of the present disclosure involve a method and a system to support execution of the method to obtain a first N cryptographic key, receive a key diversification information comprising a first p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11956345","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-11956345","citation_suggestion":"Patentable. \"DPA-resistant key derivation function\" (US-11956345). https://patentable.app/patents/US-11956345","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11956345","json":"https://patentable.app/api/llm-context/US-11956345","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T11:50:12.018Z"}