The mobile application for the trail affected by contact with coronavirus takes shape. The Council of Ministers approved the contract to design, develop and evaluate a pilot for a mobile application that allows notifying a user contacts the possible risk of contagion by Covid-19 test. From Monday next week, June 29 until July 13, a pioneering project will take place in Spain to be held in La Gomera .

Thanks to an agreement with Canarian health, the government is launching this project, so far only for the Atlantic island with a sample serve as a prototype for the subsequent launch of the application. "Upon completion of the pilot test and evaluated in a real scenario, it may take appropriate decisions for connection with the health system of the different autonomous communities , " said the Ministry of Economy and Digital Transformation.

"This app makes your phone is like a radar", has simplified the Secretary of State for Digitization and artificial intelligence, Carme Artigas, in a meeting with the media was present THE WORLD. As discussed Artigas, mobile carried out "one matching or mating Bluetooth", so that "mobile becomes a radar" .

Secretary of State insisted that the data "are not personal because they are anonymous." Also to hypothetical dissensions by the various regional governments, Artigas has said that currently "there is an autonomous community think not implement it".

The contract of the Spanish administration has awarded Indra, amounting to 330,000 euros and the emergency procedure, without public tenders.

EU, surrendered to Apple and Google

The matter urgency. Other European countries develop tools similar warning; for example, France, Italy and Germany and they have turned in recent weeks. The model followed in the continent differs from other Asian precedents in which privacy is resentful towards effectiveness. In the experiment gomero for a new app, data collation and analysis of risk is "always on the mobile user and not on a server, ensuring privacy" perform, the Ministry clarified.

For this development, Spain has surrendered to the application programming interface (API) that have jointly created Apple and Google, US private companies that dominate the market for mobile operating systems, iOS and Android, respectively. The European Union is taking this interface because, if it aspires to be useful tools must be able to be installed on phones massively.

Two meters and 15 minutes to start

To start, you must download the app, something that could be done anywhere from the stores of Apple or Google Android. The application in question uses the Bluetooth phone connection, laying anonymous identifiers issued and observe other phones, they change. If two terminals are near a certain period of time, both mobile identifier keep anonymous that issued the other.

If a user has been diagnosed with Covid-19 positive, you can consent to the health care system so they can send anonymous phone notifications from the diagnosis. Mobiles that had been near the patient would receive a warning about the risk of contagion and then instructions would be provided on how to proceed, but would not be shown in any case the identity of the infected or your phone. As has told the Secretary of State herself, the user would receive a message of this kind: "You have been in close contact with a person at risk".

The parameter used primarily for testing La Gomera is less than two meters physics and the least 15 minutes duration of the contact distance, but these variables may be adjusted during the pilot and of course in subsequent adjustments to the final release the app and adaptations for each community.

The Spanish and French model

Among other slogans in Europe it has advocated avoid geolocation, unlike the app from Asian countries. Within the EU there would be two protocol models, centralized and decentralized, and the recommendations of the European Commission finally pass this. Germany and Italy have already launched their applications and have followed the decentralized model, as is the case in Spain .

This protocol in question is the Decentralized Privacy-Preserving Proximity Tracing (DP-3T), considered even more respectful of the privacy of the user: the mobile sends the encrypted identifiers issued (always anonymous), but not those received from other phones. In addition, some and other identifiers will vary from time to time. Thus, critical data remains on the phone and not released to a central server. Faced with this criterion, France has preferred itself together the data on a server, through a centralized protocol.

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