https://letsencrypt.org/2020/09/17/new-root-and-intermediates.html https://news.ycombinator.com/item?id=24536680 https://en.wikipedia.org/wiki/Curve25519#History https://safecurves.cr.yp.to/ https://lists.torproject.org/pipermail/tor-talk/2013-September/029956.html "I no longer trust the constants. I believe the NSA has manipulated them through their relationships with industry." — Bruce Schneier, The NSA Is Breaking Most Encryption on the Internet (2013)