[brudgers]

The author concludes by asking for feedback on the idea. It would be difficult to get that from anyone, let alone people with actual expertise in cryptography, without writing a blog post and sharing it in venues like Hacker News. Rolling their own cryptography and selling it on the app store would probably be worse, as a first public engagement.

[tazjin]

> Rolling their own cryptography and selling it on the app store would probably be worse, as a first public engagement

Also not something I would do because I don't feel qualified to implement this beyond a simple POC :-)

[simoncion]

> The author concludes by asking for feedback on the idea. It would be difficult to get that from anyone, let alone people with actual expertise in cryptography, without writing a blog post...

Wat? It's trivial: https://lists.riseup.net/www/info/whispersystems