Signal is the world’s most widely used truly private messaging app, and our cryptographic technologies provide extra layers of privacy beyond the Signal app itself. Since launching in 2013, the Signal Protocol—our end-to-end encryption technology—has become the de facto standard for private commu...
  • crispy_kilt@feddit.deEnglish
    66·
    1 year ago

    They develop a lot of software themselves. They aren’t just throwing together a few established libraries and call it a day like 80% of software development. They also take the hard and correct way every time instead of the fast, easy and bad way. Quote from the article:

    The same dynamic played out again when Signal introduced support for animated GIF searches on Android and iOS. Instead of quickly and easily integrating the standard GIF search SDK that most other apps were using, engineers spent considerable time and creativity developing another unique privacy-preserving technique that hides GIF search terms from Signal’s servers, while also hiding who is searching for those terms from the GIF search engine itself. We later expanded those techniques to further obfuscate GIF search information by obscuring the amount of traffic that passes through the proxied connection.

    When Meta acquired GIPHY, and many other apps were scrambling to contend with the privacy implications of the deal, Signal employees slept soundly knowing that we had already built this feature correctly several years earlier.