{"guid":"cb02946b-0d2c-55f8-a113-3a13ac82cef3","title":"More privacy for the EHDS","subtitle":null,"slug":"37c3-lightningtalks-58040-more-privacy-for-the-ehds","link":"https://pretalx.c3voc.de/37c3-lightningtalks/talk/9Y8ZGZ/","description":"I will explain and propose to use a storage technology based on a cardinality estimation algorithm called HyperLogLog for the so-called secondary use within the European Health Data Space\n\nEU launched the European Health Data Space to make health records of all Europeans accessible from anywhere. The so-called \"secondary use\" of these data should be made available for research, decision-making, development and innovation. This is a highly privacy-relevant issue as it affects every EU citizen.\n\nOver the last few years I have been working on a research project on a similar privacy-relevant problem. I came up with a solution that relies on a cardinality estimation algorithm called HyperLogLog. It stores data in sets in a way that makes it impossible to retrieve individual data items, thus protecting the privacy of social media users.\n\nIn this lightning talk, I will present the algorithm and propose this technology to be used for the secondary use of the European Health Data Space in order to improve privacy.","original_language":"eng","persons":["mcnesium"],"tags":["37c3","58040","2023","Ethics, Society \u0026 Politics",""],"view_count":130,"promoted":false,"date":"2023-12-29T12:45:00.000+01:00","release_date":"2023-12-30T00:00:00.000+01:00","updated_at":"2026-01-29T15:30:08.361+01:00","length":301,"duration":301,"thumb_url":"https://static.media.ccc.de/media/congress/2023/58040-cb02946b-0d2c-55f8-a113-3a13ac82cef3.jpg","poster_url":"https://static.media.ccc.de/media/congress/2023/58040-cb02946b-0d2c-55f8-a113-3a13ac82cef3_preview.jpg","timeline_url":"https://static.media.ccc.de/media/congress/2023/58040-cb02946b-0d2c-55f8-a113-3a13ac82cef3.timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/congress/2023/58040-cb02946b-0d2c-55f8-a113-3a13ac82cef3.thumbnails.vtt","frontend_link":"https://media.ccc.de/v/37c3-lightningtalks-58040-more-privacy-for-the-ehds","url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_title":"37C3: Lightning Talks \u0026 Clips","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta","related":[],"recordings":[{"size":20,"length":301,"mime_type":"video/webm","language":"eng","filename":"37c3-meta-58040-eng-More_privacy_for_the_EHDS_webm-hd.webm","state":"new","folder":"webm-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2024-01-05T20:37:09.705+01:00","recording_url":"https://cdn.media.ccc.de/congress/2023/clips/webm-hd/37c3-meta-58040-eng-More_privacy_for_the_EHDS_webm-hd.webm","url":"https://api.media.ccc.de/public/recordings/73711","event_url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta"},{"size":10,"length":301,"mime_type":"video/webm","language":"eng","filename":"37c3-meta-58040-eng-More_privacy_for_the_EHDS_webm-sd.webm","state":"new","folder":"webm-sd","high_quality":false,"width":720,"height":576,"updated_at":"2024-01-05T20:27:09.367+01:00","recording_url":"https://cdn.media.ccc.de/congress/2023/clips/webm-sd/37c3-meta-58040-eng-More_privacy_for_the_EHDS_webm-sd.webm","url":"https://api.media.ccc.de/public/recordings/73703","event_url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta"},{"size":7,"length":301,"mime_type":"video/mp4","language":"eng","filename":"37c3-meta-58040-eng-More_privacy_for_the_EHDS_sd.mp4","state":"new","folder":"h264-sd","high_quality":false,"width":720,"height":576,"updated_at":"2023-12-30T19:04:55.166+01:00","recording_url":"https://cdn.media.ccc.de/congress/2023/clips/h264-sd/37c3-meta-58040-eng-More_privacy_for_the_EHDS_sd.mp4","url":"https://api.media.ccc.de/public/recordings/73442","event_url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta"},{"size":3,"length":301,"mime_type":"audio/opus","language":"eng","filename":"37c3-meta-58040-eng-More_privacy_for_the_EHDS_opus.opus","state":"new","folder":"opus","high_quality":false,"width":0,"height":0,"updated_at":"2023-12-30T18:43:09.326+01:00","recording_url":"https://cdn.media.ccc.de/congress/2023/clips/opus/37c3-meta-58040-eng-More_privacy_for_the_EHDS_opus.opus","url":"https://api.media.ccc.de/public/recordings/73388","event_url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta"},{"size":4,"length":301,"mime_type":"audio/mpeg","language":"eng","filename":"37c3-meta-58040-eng-More_privacy_for_the_EHDS_mp3.mp3","state":"new","folder":"mp3","high_quality":false,"width":0,"height":0,"updated_at":"2023-12-30T18:42:52.552+01:00","recording_url":"https://cdn.media.ccc.de/congress/2023/clips/mp3/37c3-meta-58040-eng-More_privacy_for_the_EHDS_mp3.mp3","url":"https://api.media.ccc.de/public/recordings/73387","event_url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta"},{"size":14,"length":301,"mime_type":"video/mp4","language":"eng","filename":"37c3-meta-58040-eng-More_privacy_for_the_EHDS_hd.mp4","state":"new","folder":"h264-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2023-12-30T17:54:19.219+01:00","recording_url":"https://cdn.media.ccc.de/congress/2023/clips/h264-hd/37c3-meta-58040-eng-More_privacy_for_the_EHDS_hd.mp4","url":"https://api.media.ccc.de/public/recordings/73339","event_url":"https://api.media.ccc.de/public/events/cb02946b-0d2c-55f8-a113-3a13ac82cef3","conference_url":"https://api.media.ccc.de/public/conferences/37c3-meta"}]}