{"id":2684,"date":"2020-04-27T15:59:25","date_gmt":"2020-04-27T11:59:25","guid":{"rendered":"https:\/\/techxmedia.com\/?p=2684"},"modified":"2020-07-28T08:53:42","modified_gmt":"2020-07-28T04:53:42","slug":"germany-ditches-centralized-approach-to-app-for-covid-19-contacts-tracing","status":"publish","type":"post","link":"https:\/\/techxmedia.com\/en\/germany-ditches-centralized-approach-to-app-for-covid-19-contacts-tracing\/","title":{"rendered":"Germany ditches centralized approach to app for COVID"},"content":{"rendered":"\n

Germany has U-turned on building a centralized COVID-19 contacts tracing app \u2014 and will instead adopt a decentralized architecture, Reuters<\/a> reported Sunday, citing a joint statement by chancellery minister Helge Braun and health minister Jens Spahn.<\/p>\n\n\n\n

In Europe in recent weeks, a battle has raged between different groups backing centralized vs decentralized infrastructure for apps being fast-tracked by governments which will use Bluetooth-based smartphone proximity as a proxy for infection risk \u2014 in the hopes of supporting the public health response to the coronavirus by automating some contacts tracing.<\/p>\n\n\n\n

Centralized approaches that have been proposed in the region would see pseudonymized proximity data stored and processed on a server controlled by a national authority, such as a healthcare service. However concerns have been raised about allowing authorities to scoop up citizens\u2019 social graph, with privacy experts warning of the risk of function creep and even state surveillance.<\/p>\n\n\n\n

Decentralized contacts tracing infrastructure, by contrast, means ephemeral IDs are stored locally on device \u2014 and only uploaded with a user\u2019s permission after a confirmed COVID-19 diagnosis. A relay server is used to broadcast infected IDs \u2014 enabling devices to locally compute if there\u2019s a risk that requires notification. So social graph data is not centralized.<\/p>\n\n\n\n

The change of tack by the German government marks a major blow to a homegrown standardization effort, called PEPP-PT<\/a>, that had been aggressively backing centralization \u2014 while claiming to \u2018preserve privacy\u2019 on account of not tracking location data. It quickly scrambled to propose a centralized architecture for tracking coronavirus contacts, led by Germany\u2019s Fraunhofer Institute, and claiming the German government as a major early backer, despite PEPP-PT later saying it would support decentralized protocols too.<\/p>\n\n\n\n

As we reported earlier<\/a>, the effort faced strident criticism from European privacy experts \u2014 including a group of academics developing a decentralized protocol called DP-3T \u2014 who argue p2p architecture is truly privacy preserving. Concerns were also raised about a lack of transparency around who is behind PEPP-PT and the protocols they claimed to support, with no code published for review.<\/p>\n\n\n\n

The European Commission, <\/strong><\/a> meanwhile, has also recommended the use of decentralization technologies to help boost trust in such apps in order to encourage wider adoption.<\/p>\n\n\n\n

EU parliamentarians have also warned regional governments against trying to centralize proximity data during the coronavirus crisis.<\/p>\n\n\n\n

But it was\u00a0Apple\u00a0<\/a>\u00a0and Google<\/a> jumping into the fray earlier this month by announcing joint support for decentralized contacts tracing that was the bigger blow \u2014 with no prospect of platform-level technical restrictions being lifted. iOS limits background access to Bluetooth for privacy and security reasons, so national apps that do not meet this decentralized standard won\u2019t benefit from\u00a0API\u00a0<\/a>\u00a0support \u2014 and will likely be far less usable, draining battery and functioning only if actively running.<\/p>\n\n\n\n

Nonetheless PEPP-PT\u00a0told journalists<\/a>\u00a0just over a week ago that it was engaged in fruitful discussions with Apple and Google<\/a> about making changes to their approach to accommodate centralized protocols.<\/p>\n\n\n\n

Notably, the tech giants never confirmed that claim. They have only since doubled down<\/a> on the principle of decentralization for the cross-platform API for public health apps \u2014 and system-wide contacts tracing which is due to launch next month.<\/p>\n\n\n\n

At the time of writing PEPP-PT\u2019s spokesman, Hans-Christian Boos, had not responded to a request for comment on the German government withdrawing support.<\/p>\n\n\n\n

Boos previously claimed PEPP-PT had around 40 governments lining up to join the standard. However in recent days the momentum in Europe has been going in the other direction<\/a>. A number of academic institutions that had initially backed PEPP-PT have also withdrawn support.<\/p>\n\n\n\n

In a statement emailed to TechCrunch, the DP-3T project welcomed Germany\u2019s U-turn. \u201cDP-3T is very happy to see that Germany is adopting a decentralized approach to contact tracing and we look forward to its next steps implementing such a technique in a privacy preserving manner,\u201d the group told us.<\/p>\n\n\n\n

Berlin\u2019s withdrawal leaves France and the UK the two main regional backers of centralized apps for coronavirus contacts tracing. And while the German U-turn is certainly a hammer blow for the centralized camp in Europe the French government appears solid in its support \u2014 at least for now.<\/p>\n\n\n\n

France has been developing a centralized coronavirus contacts tracing protocol, called ROBERT<\/a>, working with Germany\u2019s Fraunhofer Institute and others.<\/p>\n\n\n\n

In an opinion<\/a> issued Sunday, France\u2019s data protection watchdog, the CNIL, did not take active issue with centralizing pseudonymized proximity IDs \u2014 saying EU law does not in principle forbid such a system \u2014 although the watchdog emphasized the need to minimize the risk of individuals being re-identified.<\/p>\n\n\n\n

It\u2019s notable that France\u2019s digital minister, C\u00e9dric O, has been applying high profile public pressure to Apple over Bluetooth restrictions \u2014 telling Bloomberg<\/a> last week that Apple\u2019s policy is a blocker to the virus tracker.<\/p>\n\n\n\n

Yesterday O was also tweeting to defend the utility of the planned \u2018Stop Covid\u2019 app.<\/p>\n","protected":false},"excerpt":{"rendered":"

Germany has U-turned on building a centralized COVID-19 contacts tracing […]<\/p>\n","protected":false},"author":40,"featured_media":2686,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[460],"contributor":[],"class_list":["post-2684","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-other-tech-events","tag-google-2"],"featured_image_src":"https:\/\/techxmedia.com\/en\/wp-content\/uploads\/2020\/04\/GettyImages-1206167199.jpg","author_info":{"display_name":"Techx Admin","author_link":"https:\/\/techxmedia.com\/en\/author\/techxadmin\/"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/posts\/2684","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/users\/40"}],"replies":[{"embeddable":true,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/comments?post=2684"}],"version-history":[{"count":0,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/posts\/2684\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/media\/2686"}],"wp:attachment":[{"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/media?parent=2684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/categories?post=2684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/tags?post=2684"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/techxmedia.com\/en\/wp-json\/wp\/v2\/contributor?post=2684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}