Signal adds a payments feature with a privacy-focused cryptocurrency

Hi!

I'm the CEO of MobileCoin. If anyone has any questions please feel free to ask here. We've been working on this project for four years and it has been a labor of love. There's a lot of new technology here.

We exist in a highly regulated space so it's possible some questions will require reaching out to lawyers to make sure we answer them in a way that's compliant so please don't feel offended if a response takes a while to come back.

The best set of docs for how the whole thing fits together is our book "The Mechanics of MobileCoin"[0].

We'll be around here and on our forums [1] to answer questions. Please also check out our foundation website[2]. The github[3] is also a lot of fun, especially the section on Fog[4].

[0]https://github.com/UkoeHB/Mechanics-of-MobileCoin/blob/maste...

[1]https://community.mobilecoin.foundation

[2]https://mobilecoin.foundation

[3]https://github.com/mobilecoinfoundation/mobilecoin

[4]https://github.com/mobilecoinfoundation/fog

Hi Josh, thanks for taking the time!

My question, to both you and (especially) Moxie: Why do you trust Intel SGX so much (for Signal but now also MobileCoin)? Why are you not worried about vulnerabilities? As you're surely aware, even Matt Green who is/used to be(?) the biggest fan of Signal[0] is very concerned[1] about SGX. I don't question your intentions but the fact that Signal as an organization has stayed completely silent about this is… worrisome and at the very least taints its reputation of openness and trustworthiness. With MobileCoin now relying on it, too (more or less), this only seems to be getting worse.

[0]: http://web.archive.org/web/20200201112751/https://signal.org...

[1]: https://blog.cryptographyengineering.com/2020/07/10/a-few-th...