On November 16th, Meredith Whittaker, President of Signal, published a detailed breakdown of the popular encrypted messaging app’s running costs for the very first time. The unprecedented disclosure’s motivation was simple - the platform is rapidly running out of money, and in dire need of donations to stay afloat. Unmentioned by Whittaker, this budget shortfall results in large part due to the US intelligence community, which lavishly financed Signal’s creation and maintenance over several years, severing its support for the app.
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Yeah they had perfect forward secrecy when they forked from signal, and then they tore it out because it was too complex to fit in there model. That’s an admission their bad programmers, and we shouldn’t trust them with crypto, or nefarious and we shouldn’t trust them with crypto.
Going back to what’s next:
Contact Discovery is the major hurdle to adoption of any really secure platform. I do appreciate signals SGX enclaves, they solve the problem in a nice way… If you trust SGX enclaves. That being said, that’s not the only way to do it. Though I can’t think of many contact discovery mechanisms that don’t rely on a central source of truth. Maybe that’s the necessary evil for onboarding, but it doesn’t have to be part of the day-to-day operations.