{"id":12257,"date":"2022-01-26T14:50:26","date_gmt":"2022-01-26T14:50:26","guid":{"rendered":"https:\/\/direc.dk\/accountability-privacy-preserving-computation-via-blockchain\/"},"modified":"2025-10-20T13:02:56","modified_gmt":"2025-10-20T13:02:56","slug":"accountability-privacy-preserving-computation-via-blockchain","status":"publish","type":"post","link":"https:\/\/direc.dk\/da\/accountability-privacy-preserving-computation-via-blockchain\/","title":{"rendered":"Accountability Privacy Preserving Computation via Blockchain"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"12257\" class=\"elementor elementor-12257 elementor-12130\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-4ced3051 elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-reverse-mobile elementor-reverse-tablet elementor-section-full_width elementor-section-height-default\" data-id=\"4ced3051\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;shape_divider_bottom&quot;:&quot;triangle&quot;,&quot;shape_divider_bottom_negative&quot;:&quot;yes&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" aria-hidden=\"true\" data-negative=\"true\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1000 100\" preserveAspectRatio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M500.2,94.7L0,0v100h1000V0L500.2,94.7z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5c35ac45\" data-id=\"5c35ac45\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-446f292d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"446f292d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-4c95d64b\" data-id=\"4c95d64b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1b5ac7ad elementor-widget elementor-widget-heading\" data-id=\"1b5ac7ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">DIREC-projekt<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-116a2e75 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"116a2e75\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Accountability Privacy Preserving Computation via Blockchain<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2c9a157c\" data-id=\"2c9a157c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-49e905e7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"49e905e7\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1d30da69\" data-id=\"1d30da69\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ce8da97 elementor-widget elementor-widget-heading\" data-id=\"ce8da97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Resum\u00e9<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6f14527\" data-id=\"6f14527\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2f4a2e67 elementor-widget elementor-widget-text-editor\" data-id=\"2f4a2e67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Dette projekt har til form\u00e5l at kombinere sikker multiparty-beregning og blockchain-teknikker for at muligg\u00f8re effektiv databehandling, der beskytter privatlivets fred, hvilket muligg\u00f8r beregning p\u00e5 private data, mens der opretholdes et revisionsspor til tredjepartsverifikation. Projektet kan potentielt hj\u00e6lpe med at bek\u00e6mpe diskrimination samt fange uetisk og bedragerisk adf\u00e6rd.<\/p>\n<p><strong>Projektperiode:<\/strong>\u00a02022-2024<\/p>\n<p><strong>Projektleder<\/strong><\/p>\n<ul>\n<li>Associate Professor Bernardo David<\/li>\n<li>Department of Computer Science, ITU<\/li>\n<li>beda@itu.dk<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-700e9d0d elementor-widget elementor-widget-toggle\" data-id=\"700e9d0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;none&quot;}\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1881\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1881\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Mere om projektet (p\u00e5 engelsk)<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1881\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1881\"><p>The project will investigate how to combine secure multiparty computation and blockchain techniques to obtain more efficient privacy-preserving computation with accountability. Privacy-preserving computation with accountability allows computation on private data (without compromising data privacy), while obtaining an audit trail that allows third parties to verify that the computation succeeded or to identify bad actors who tried to cheat. Applications include data analysis (e.g., in the context of discrimination detection and bench marking) and fraud detection (e.g. in the financial and insurance industries).<\/p>\n<h5>Value Creation<\/h5>\n<p>Using this kind of auditable continuous secure computation can help fight discrimination and catch unethical and\u00a0fraudulent behaviour. Computations that advance these goals include aggregate statistics on salary information\u00a0\u00a0to help identify and eliminate wage gaps (e.g. as seen in the case of the Boston wage gap study [4]), statistics on bids in an auction or bets on a gambling site to determine whether those bids or bets are fraudulent, and many\u00a0others.<\/p>\n<p>Organizations would not be able to carry out such computations without the use of privacy-preserving technologies due to privacy regulations; so, secure computation is necessary here. To be useful, these secure computations crucially require authenticity and consistency of the inputs. Organizations, which will not necessarily be driven by altruism, will have several incentives to participate in these computations.<\/p>\n<p>First, by using secure computation to detect fraud, the participants can guard against financial loss.<\/p>\n<p>Second, when participants are public organizations, honest participation (which anyone can verify) will generate positive publicity.<\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-747de414 elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-reverse-mobile elementor-reverse-tablet elementor-section-stretched elementor-section-boxed elementor-section-height-default\" data-id=\"747de414\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2753248f\" data-id=\"2753248f\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-446187cf animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"446187cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Insights<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-374d1b12 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"374d1b12\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-180d7903\" data-id=\"180d7903\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-556d1bb1 elementor-widget__width-initial elementor-widget elementor-widget-eael-post-list\" data-id=\"556d1bb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eael-post-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"eael-post-list-container default layout-default\"><div class=\"eael-post-list-wrap\"><div class=\"eael-post-list-posts-wrap eael-post-appender eael-post-appender-556d1bb1\"><div class=\"eael-post-list-post \"><div class=\"eael-post-list-thumbnail \"><a href=\"https:\/\/direc.dk\/da\/nye-teknologier-skal-hjaelpe-banker-forsikringsselskaber-og-myndigheder-med-at-bekaempe-svindel\/\">\n                            <img decoding=\"async\" src=\"https:\/\/direc.dk\/wp-content\/uploads\/2022\/04\/blog-blockchain-alexandra-instituttet-1024x576.webp\" alt=\"\">\n                        <\/a><\/div><div class=\"eael-post-list-content\"><h2 class=\"eael-post-list-title\"><a href=\"https:\/\/direc.dk\/da\/nye-teknologier-skal-hjaelpe-banker-forsikringsselskaber-og-myndigheder-med-at-bekaempe-svindel\/\" >Nye teknologier skal hj\u00e6lpe banker, forsikringsselskaber og myndigheder med at bek\u00e6mpe svindel<\/a><\/h2><div class=\"meta\"><span class=\"eael-post-published-date\"><i class=\"far fa-calendar-alt\"><\/i> 26. april 2022<\/span><\/div><\/div><\/div><\/div><\/div>\n\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7aba5340\" data-id=\"7aba5340\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Dette projekt har til form\u00e5l at kombinere sikker multiparty-beregning og blockchain-teknikker for at muligg\u00f8re effektiv databehandling, der beskytter privatlivets fred, hvilket muligg\u00f8r beregning p\u00e5 private data, mens der opretholdes et revisionsspor til tredjepartsverifikation. Projektet kan potentielt hj\u00e6lpe med at bek\u00e6mpe diskrimination samt fange uetisk og bedragerisk adf\u00e6rd.<\/p>\n","protected":false},"author":3,"featured_media":13888,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[188,210,33,218],"tags":[],"class_list":["post-12257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-afsluttet-projekt","category-cybersikkerhed","category-explore-projekt","category-projekt"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Accountability Privacy Preserving Computation via Blockchain - DIREC<\/title>\n<meta name=\"description\" content=\"Artificial Intelligence brings the promise of technological means to solve problems that previously were assumed to require human intelligence, and ultimately provide human-centered 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