{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9712320","patent":{"patent_number":"US-9712320","title":"Delegatable pseudorandom functions and applications","assignee":null,"inventors":[],"filing_date":"2013-06-30T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":36,"abstract":"Techniques are provided for delegating evaluation of pseudorandom functions to a proxy. A delegator delegates evaluation of a pseudorandom function to a proxy, by providing a trapdoor τ to the proxy based on a secret key k and a predicate P using an algorithm T, wherein the predicate P defines a plurality of values for which the proxy will evaluate the pseudorandom function, wherein the plurality of values comprise a subset of a larger domain of values, and wherein the trapdoor τ provides an indication to the proxy of the plurality of values. A proxy evaluates a pseudorandom function delegated by a delegator by receiving a trapdoor τ from the delegator that provides an indication of a plurality of values to be evaluated, wherein the plurality of values comprise a subset of a larger domain of values; and evaluating an algorithm C on the trapdoor τ to obtain the pseudorandom function value for each of the plurality of values. The trapdoor τ can be provided to the proxy using a Gordreich, Goldwasser, Micali (GGM) binary tree representation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Delegatable pseudorandom functions and applications","description":"Techniques are provided for delegating evaluation of pseudorandom functions to a proxy. A delegator delegates evaluation of a pseudorandom function to a proxy, by providing a trapdoor τ to the proxy b","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9712320","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-9712320","citation_suggestion":"Patentable. \"Delegatable pseudorandom functions and applications\" (US-9712320). https://patentable.app/patents/US-9712320","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9712320","json":"https://patentable.app/api/llm-context/US-9712320","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:38:23.185Z"}