The StopCovid application on a smartphone. & Nbsp;
The StopCovid application on a smartphone. (VANESSA MEYER / MAXPPP)

The digital secretary of state unveiled the visuals of the StopCovid application as well as the results of the first tests that were carried out “in situ” by a group of military guinea pigs. According to the government, it works. The application would detect almost 80% of people with whom we are in contact within a radius of one meter for more than fifteen minutes. Note however detection errors, inherent in Bluetooth technology, but which do not affect the operation of the application, according to the ministry.

Once the app is installed, you need to activate it. It then works in the background using the Bluetooth connection to detect other users. In the event of a positive Covid-19 test, the patient must indicate this in the application. It is necessary to enter a code, provided by health organizations, in order to avoid abuse. This is what allows the application to fulfill its role.

The purpose of the StopCovid application is to limit the spread of the virus. Anyone who uses it will be likely to be notified by a notification if they have encountered, in the days preceding, another person also using the application who has testified positive at Covid-19. The procedure will be anonymous, no name will be given to users and it will not be known by whom it may have been infected. This is called contact tracing, contact tracking.

The StopCovid app has met with many objections and has sparked a wide debate on the issue of personal data and its storage. Should it be centralized – this is the option chosen – or decentralized? The government finally rejected the solution proposed by Apple and Google. For its part, INRIA (National Institute for Research in Computer Science and Automation), which oversees the project, has developed a tool with an evocative name, the famous Robert protocol (ROBust and privacy-presERving proximity Tracing).

On the legal level, the application, in its latest version, has received the approval of the CNIL (National Commission for Information Technology and Liberties). It will now be the subject of a bug bounty, that is to say a bug search by hackers, to test its security. Scheduled for an official launch on Tuesday, June 2, StopCovid should be ready, according to his managers, this weekend.

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