{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11483146","patent":{"patent_number":"US-11483146","title":"Technique for protecting a cryptographic key by means of a user password","assignee":null,"inventors":[],"filing_date":"2018-12-12T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["G06F","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","G06F","G06F","G06F"],"num_claims":20,"abstract":"A technique for protecting a cryptographic key. A user has an identifier and an associated password. The first cryptographic key is designed to decrypt a piece of encrypted data. The user device generates a second cryptographic key by applying a key derivation algorithm to at least the password, then encrypts the first cryptographic key by applying an encryption algorithm parameterized by the second cryptographic key. The user device then provides the encryption of the first cryptographic key to a management device for storage. A response associated with a question is obtained from the user. The user device calculates a result of an application of a function to at least one response associated with a question, then provides a value dependent on the result to a management device for storage. The value then enables the user device to determine the password when it has the response to the corresponding question."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Technique for protecting a cryptographic key by means of a user password","description":"A technique for protecting a cryptographic key. A user has an identifier and an associated password. The first cryptographic key is designed to decrypt a piece of encrypted data. The user device gener","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11483146","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-11483146","citation_suggestion":"Patentable. \"Technique for protecting a cryptographic key by means of a user password\" (US-11483146). https://patentable.app/patents/US-11483146","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11483146","json":"https://patentable.app/api/llm-context/US-11483146","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:23:29.136Z"}