{"guid":"5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","title":"Fiona über Hash-Kollisionen [5 Minuten Termine]","subtitle":"","slug":"2021-02-24-jakob-uber-hash-kollisionen","link":"https://chaotikum.org/blog/2021/02/20/5minhomekhomeVII/","description":"Fiona hat sich mit Hash-Kollisionen bei PHP beschäftigt und praktisch ausprobiert, wie sehr das Parsen einer JSON-Datei langsamer wird, wenn die Keys künstlich so gewählt wurden, dass möglichst viele Kollisionen entstehen.\r\n\t\t\t\r\n\r\n\t\t\t\t\t\u003cp\u003e\u0026lt;p\u0026gt;Ein Vortrag im Rahmen der Fünf-Minuten-Termine. Die Idee ist eigentlich einfach: Ab und zu nutzen wir das volle Haus und jede Person, die möchte, kann kurz vorstellen, was auch immer ihr vorschwebt.\u0026lt;/p\u0026gt;\u003c/p\u003e\r\n\r\n\t\t\t\t\tThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY NC ND 4.0). https://creativecommons.org/licenses/by-nc-nd/4.0/\r\n\t\t\t","original_language":"deu","persons":["Fiona Runge"],"tags":["chaotikum","879","2021"],"view_count":50,"promoted":false,"date":"2021-02-24T19:00:00.000+01:00","release_date":"2023-01-29T00:00:00.000+01:00","updated_at":"2026-01-20T12:15:13.173+01:00","length":370,"duration":370,"thumb_url":"https://static.media.ccc.de/media/regional/luebeck/chaotikum/879-5089790D-DAD2-49B5-B9DF-0FFECB4C4D96.jpg","poster_url":"https://static.media.ccc.de/media/regional/luebeck/chaotikum/879-5089790D-DAD2-49B5-B9DF-0FFECB4C4D96_preview.jpg","timeline_url":"https://static.media.ccc.de/media/regional/luebeck/chaotikum/879-5089790D-DAD2-49B5-B9DF-0FFECB4C4D96.timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/regional/luebeck/chaotikum/879-5089790D-DAD2-49B5-B9DF-0FFECB4C4D96.thumbnails.vtt","frontend_link":"https://media.ccc.de/v/2021-02-24-jakob-uber-hash-kollisionen","url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_title":"Chaotikum","conference_url":"https://media.ccc.de/public/conferences/chaotikum","related":[],"recordings":[{"size":32,"length":370,"mime_type":"video/webm","language":"deu","filename":"chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_webm-hd.webm","state":"new","folder":"webm-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2023-01-29T12:56:31.109+01:00","recording_url":"https://cdn.media.ccc.de/contributors/luebeck/chaotikum/webm-hd/chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_webm-hd.webm","url":"https://media.ccc.de/public/recordings/64436","event_url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_url":"https://media.ccc.de/public/conferences/chaotikum"},{"size":12,"length":370,"mime_type":"video/webm","language":"deu","filename":"chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_webm-sd.webm","state":"new","folder":"webm-sd","high_quality":false,"width":720,"height":576,"updated_at":"2023-01-29T12:55:02.618+01:00","recording_url":"https://cdn.media.ccc.de/contributors/luebeck/chaotikum/webm-sd/chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_webm-sd.webm","url":"https://media.ccc.de/public/recordings/64433","event_url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_url":"https://media.ccc.de/public/conferences/chaotikum"},{"size":9,"length":370,"mime_type":"video/mp4","language":"deu","filename":"chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_sd.mp4","state":"new","folder":"h264-sd","high_quality":false,"width":720,"height":576,"updated_at":"2023-01-29T12:53:42.386+01:00","recording_url":"https://cdn.media.ccc.de/contributors/luebeck/chaotikum/h264-sd/chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_sd.mp4","url":"https://media.ccc.de/public/recordings/64432","event_url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_url":"https://media.ccc.de/public/conferences/chaotikum"},{"size":5,"length":370,"mime_type":"audio/mpeg","language":"deu","filename":"chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_mp3.mp3","state":"new","folder":"mp3","high_quality":false,"width":0,"height":0,"updated_at":"2023-01-29T12:53:14.688+01:00","recording_url":"https://cdn.media.ccc.de/contributors/luebeck/chaotikum/mp3/chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_mp3.mp3","url":"https://media.ccc.de/public/recordings/64431","event_url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_url":"https://media.ccc.de/public/conferences/chaotikum"},{"size":4,"length":370,"mime_type":"audio/opus","language":"deu","filename":"chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_opus.opus","state":"new","folder":"opus","high_quality":false,"width":0,"height":0,"updated_at":"2023-01-29T12:52:58.666+01:00","recording_url":"https://cdn.media.ccc.de/contributors/luebeck/chaotikum/opus/chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_opus.opus","url":"https://media.ccc.de/public/recordings/64430","event_url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_url":"https://media.ccc.de/public/conferences/chaotikum"},{"size":20,"length":370,"mime_type":"video/mp4","language":"deu","filename":"chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_hd.mp4","state":"new","folder":"h264-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2023-01-29T12:23:48.399+01:00","recording_url":"https://cdn.media.ccc.de/contributors/luebeck/chaotikum/h264-hd/chaotikum-879-deu-Jakob_ueber_Hash-Kollisionen_5_Minuten_Termine_hd.mp4","url":"https://media.ccc.de/public/recordings/64404","event_url":"https://media.ccc.de/public/events/5089790D-DAD2-49B5-B9DF-0FFECB4C4D96","conference_url":"https://media.ccc.de/public/conferences/chaotikum"}]}