{"id":797,"date":"2019-05-06T14:47:36","date_gmt":"2019-05-06T12:47:36","guid":{"rendered":"https:\/\/www.uni.lu\/snt-fr\/events\/srm-research-seminar-csidh-efficient-post-quantum-commutative-group-action\/"},"modified":"2019-05-06T14:47:36","modified_gmt":"2019-05-06T12:47:36","slug":"srm-research-seminar-csidh-efficient-post-quantum-commutative-group-action","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/snt-fr\/events\/srm-research-seminar-csidh-efficient-post-quantum-commutative-group-action\/","title":{"rendered":"SRM Research Seminar &#8211; CSIDH: Efficient Post-quantum Commutative Group Action"},"content":{"rendered":"<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><p><strong>Invited by:<\/strong> Prof. Peter Y. A. Ryan<\/p><p>CSIDH, or &lsquo;commutative supersingular isogeny Diffie-Hellman&rsquo; is a new isogeny-based protocol of Castryck, Lange, Martindale, Panny, and Renes. The Diffie-Hellman style scheme resulting from the group action allows for public key validation at very little cost, runs reasonably fast in practice, and has public keys of only 64 bytes at a conjectured AES-128 security level, matching NIST\u2019s post-quantum security category I. For comparison, the SIDH (and SIKE) isogeny-based cryptosystems are faster than CSIDH, but they do not support non-interactive key exchange, and their public keys and ciphertexts are 6 times larger than in CSIDH. We will describe the CSIDH protocol, give an overview of the security analysis, and outline some potential applications.<\/p><p><strong>Chloe Martindale<\/strong> is a number theorist and cryptographer currently working as a Postdoc at the Technical University of Eindhoven in the group of Prof. dr. Tanja Lange. Her current research focusses (but are not limited to) on pairings on elliptic curves and genus 2 curves, isogeny-based post-quantum crypto, and the discrete logarithm for (hyperelliptic) genus 3 curves.<\/p><p><\/p><p>The SRM seminars are the joint seminars of the Security and Trust of Software Systems and Applied Security and Information Assurance research groups, supported by the Laboratory of Algorithmics, Cryptology and Security and the Interdisciplinary Centre for Security, Reliability and Trust.<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"<p>Invited by: Prof. Peter Y. A. Ryan<\/p>\n","protected":false},"author":0,"featured_media":798,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2019-05-07 10:30:00","event_end_date":"2019-05-07 11:30:00","event_speaker_name":"Martindale Chloe","event_speaker_link":"","event_is_online":false,"event_location":"Room MNO 1.050, Campus Belval,","event_street":"6 Avenue de la Fonte,","event_location_link":"","event_zip_code":"L-4364","event_city":"Esch-sur-Alzette","event_country":"LU"},"events-topic":[],"events-type":[],"organisation":[183],"authorship":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SRM Research Seminar - CSIDH: Efficient Post-quantum Commutative Group Action - SnT - Universit\u00e9 du Luxembourg I Uni.lu<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/snt-fr\/events\/srm-research-seminar-csidh-efficient-post-quantum-commutative-group-action\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SRM Research Seminar - CSIDH: Efficient Post-quantum Commutative Group Action\" \/>\n<meta property=\"og:description\" content=\"Invited by: Prof. Peter Y. 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