I have used in package djbdns, ucspi-tcp and daemontools tnx Daniel J. Bernstein
I have used in package NaCl tnx Tanja Lange, Daniel J. Bernstein and Peter Schwabe
I have used text from http://dnscurve.org and http://curvecp.org tnx Daniel J. Bernstein
I have used in package DNSCurve patch and python dnscurve tools tnx Matthew Dempsky
I have used in package ucspi-tcp-0.88-ipv6 patch tnx Felix von Leitner
I have used in package gnupg tnx gnupg developers
I have used in package zscaner from knot-dns tnx knot-dns developers