With Signal you can now call with 40 people


Photo: Nicolas Asfouri (Getty Images)

Good news for covert tribunals and rioting activists and workers: Signal now enables encrypted video calls with 40 people. Good to keep in mind if you don’t want to risk law enforcement or foreign governments or your boss or tech companies searching your stuff.

Today Signal posted a detailed description of the open-source software Signal call service who developed it to encrypt such large group conversations. Instead of the clunky process of sending 40 videos directly between users, or the more fragile process of “mixing” all the media through the server, Signal used “selective forwarding”, where the server simply passes media from one person to another. all participants . They developed a version that can handle a larger volume than available open-source SFUs, which required a more complicated process that you can come in here.

As we approach the second year of the pandemic, you may know how little we should trust that other companies’ claims of “end-to-end encryption” actually mean that communications will be private (Zoom, whatsapp). The boss can view your video conferencing activity on the company account, which: extends to record your Zoom meetings, listen back, download transcripts, and even view private DMs you send in the app. (Toobin was in talks with Zoom!) Zoom could invade itself, as indicated by the Justice Department accusations that a China-based security manager had wiretapped and cut off phone calls to Tiananmen Square. Zoom has notoriously logged a ton of security flaws. Video services can generally honor government subpoenas for private content, such as stored recordings, which Signal cannot, because it simply doesn’t have them. You could go on a few steps to feel more secure, or just step on the app that doesn’t pass any data.

If you’re asking what you could be doing at work or talking to family that would be humiliating or taxing enough for interest rate management or a foreign government, I don’t know, the pandemic got weird!


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