The garbled circuit technique transforms a circuit in such\u00a0a way that it can be evaluated on encrypted inputs. Garbled circuits\u00a0were originally introduced by Yao (FOCS \u201986) for the purpose of secure
\ntwo-party computation but have since found many applications.<\/p>\n
In this work, we consider the problem of designing special-purpose garbled\u00a0circuits, which are garbled circuits that handle only a specific class\u00a0of functionalities. Special-purpose constructions are usually smaller than\u00a0general-purpose ones and lead to more efficient two-party protocols.<\/p>\n
We propose a design framework for constructing special-purpose garbled\u00a0circuits based on structured encryption schemes, which are encryption\u00a0schemes that encrypt data structures in such a way that they can be\u00a0queried through the use of a token. Using our framework, we show how\u00a0to design more efficient garbled circuits for several graph-based functionalities\u00a0(with applications to online social network analysis), Boolean\u00a0circuits, deterministic finite automata, and branching programs.<\/p>\n","protected":false},"excerpt":{"rendered":"
The garbled circuit technique transforms a circuit in such\u00a0a way that it can be evaluated on encrypted inputs. Garbled circuits\u00a0were originally introduced by Yao (FOCS \u201986) for the purpose of secure two-party computation but have since found many applications. In this work, we consider the problem of designing special-purpose garbled\u00a0circuits, which are garbled circuits that […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"Springer","msr_publisher_other":"","msr_booktitle":"Financial Cryptography and Data Security","msr_chapter":"","msr_edition":"Financial Cryptography and Data Security","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"177\u2013188","msr_page_range_start":"177","msr_page_range_end":"188","msr_series":"","msr_volume":"7862","msr_copyright":"","msr_conference_name":"","msr_doi":"10.1007\/978-3-642-41320-9_12","msr_arxiv_id":"","msr_s2_paper_id":"","msr_mag_id":"","msr_pubmed_id":"","msr_other_authors":"Lei 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