Clever Cryptography Could Protect Privacy in Covid-19 Contact-Tracing Apps
55 years, 3 months ago

Clever Cryptography Could Protect Privacy in Covid-19 Contact-Tracing Apps

Wired  

Before the Covid-19 pandemic, any system that used smartphones to track locations and contacts sounded like a dystopian surveillance nightmare. "For the infected person, there's protection because their information has been already redacted and hashed," says Ramesh Raskar, a professor in MIT's Media Lab leading the project. If the government agency or health care organization controlling the server wants to violate the privacy of the infected users, it's still possible to "crack" those hashes by hashing all the possible times and locations on a map. Their system would report redacted, hashed location trails of infected users to a health care authority through a so-called Mix Network: a collection of at least three servers controlled by different entities. Like the onion routing system used by the anonymity software Tor, each of those intermediary servers would mix up the hashed, timestamped locations of users before passing them on to the next one, so that by the time they reach the government authority storing the hashes, that final server wouldn't be able to associate any of those hashed locations with a specific user.

History of this topic

West Australians’ highly sensitive personal data put at risk as COVID-19 contact tracing system lacks security
2 years, 10 months ago
Public urged to work with contact tracing teams over Christmas period
3 years, 3 months ago
Test and Trace app ‘pinging’ people whose neighbours have Covid through walls, report claims
3 years, 8 months ago
Covid contact tracing to be scaled down, change in quarantine rule
3 years, 9 months ago
COVID tracking app usage on the rise despite concerns of complacency in the NT
3 years, 9 months ago
Apple, Google's COVID-19 tracing tech saved thousands of lives in UK, about time India gets it too
3 years, 10 months ago
Google Covid-19 Contact Tracing App Flaw Could Leak Sensitive Health Data: Report
3 years, 11 months ago
Fine-tuning the State-of-the-app technology
4 years, 1 month ago
Singapore COVID-19 contact-tracing data accessible to police
4 years, 2 months ago
California’s new contact-tracing app: What you need to know
4 years, 3 months ago
Spam calls are hindering efforts to contact trace and track Covid-19
4 years, 5 months ago
What is contact tracing, and how does it work with COVID-19?
4 years, 5 months ago
Largest study of COVID-19 transmission highlights essential role of super-spreaders
4 years, 6 months ago
What is contact tracing, and how does it work with covid-19?
4 years, 6 months ago
NHS Covid-19 app: Design problem means people could be told to self-isolate unnecessarily
4 years, 6 months ago
NHS coronavirus app: Future updates will warn users if they are exposing themselves to too many people, developers say
4 years, 6 months ago
Government urged to 'prove' the Apple and Google coronavirus contact tracing app works
4 years, 6 months ago
L.A. has a new COVID-19 contact tracing app from a controversial source
4 years, 6 months ago
Contact Tracing Apps May Be Ineffective in Reducing Covid-19 Spread: Study
4 years, 7 months ago
NHS contact tracing app 'is unlikely to reduce the spread of Covid-19'
4 years, 7 months ago
UK Begins Testing a New App to Fight Covid-19 Spread
4 years, 7 months ago
Mandatory quarantine for Covid-19 patient's close contacts
4 years, 7 months ago
Column: I’m in Canada, where the COVID police are watching
4 years, 7 months ago
Conspiracy theories debunked: Here’s what COVID contact tracers really do
4 years, 8 months ago
Coronavirus Outbreak: What is contact tracing? How does it help in curbing COVID-19 cases?
4 years, 8 months ago
What is contact tracing, and how does it work with COVID-19?
4 years, 8 months ago
How contact tracing could help rein in COVID-19
4 years, 8 months ago
Coronavirus UK: Tracking app dropped for Apple and Google tech
4 years, 9 months ago
Coronavirus: NHS contact-tracing app may not be ready until winter, health minister admits
4 years, 9 months ago
Privacy fears over COVID apps by Bahrain, Kuwait, Norway
4 years, 9 months ago
COVIDSafe has been downloaded by millions, but yet to identify contacts (and authorities say that's a good thing)
4 years, 9 months ago
Contact tracing could become a regular part of office life. Here’s how it will work
4 years, 9 months ago
Coronavirus: Government’s contact tracing app could ‘exacerbate health inequalities’
4 years, 9 months ago
Coronavirus: Only 4 in 10 Covid-19 patients contacted at start of government's 'test and trace' scheme, leaked figures show
4 years, 9 months ago
French virus tracing app goes live amid debate over privacy
4 years, 9 months ago
UK's COVID-19 tracking system under fire amid warning of second wave of Coronavirus outbreak
4 years, 10 months ago
Apple and Google share contact tracing technology that can help fight coronvirus
4 years, 10 months ago
Google and Apple release technology to help with coronavirus contact tracing
4 years, 10 months ago
Experts raise concerns about security of coronavirus tracing app COVIDSafe
4 years, 10 months ago
Corona apps well-intentioned but privacy concerns must be addressed
4 years, 10 months ago
‘I can’t be afraid of the risk to privacy right now’: Coronavirus and tracking app surveillance
4 years, 10 months ago
Surveillance system or Covid-19 tracker? Coronavirus tracing Aarogya Setu app raises privacy concerns in India
4 years, 10 months ago
Coronavirus: NHS contact-tracing app must not be released to public without privacy protections, MPs say
4 years, 10 months ago
With COVID-19 tracing apps comes privacy tradeoffs: Here's why you should be worried
4 years, 10 months ago
Can Australia's coronavirus contact tracing app COVIDSafe lift the country out of lockdown?
4 years, 10 months ago
Here come COVID-19 tracing apps - and privacy trade-offs
4 years, 10 months ago
Coronavirus: New NHS contact-tracing app vulnerable to ‘malicious false alerts’, warn experts
4 years, 10 months ago
Coronavirus contact-tracing app could make 'privacy and rights another casualty of the virus', campaigners warn
4 years, 10 months ago
Coronavirus: NHS contact tracing app trial begins on Isle of Wight amid hopes tracking can help lift lockdown
4 years, 10 months ago
Public urged to download NHS coronavirus tracing app amid questions over privacy and security safeguards
4 years, 10 months ago

Discover Related