From rfc7539, section 2.5. I orginally only sourced from appendix A.3,
but there's no reason why we shouldn't also include this.
Section A.5 however would take some manual tweaking. Let's not.
0100000000000000040000000000000000000000000000000000000000000000:
E33594D7505E43B900000000000000003394D7505E4379CD010000000000000000000000000000000000000000000000:
13000000000000000000000000000000:
+
+85d6be7857556d337f4452fe42d506a80103808afb0db2fd4abff6af4149f51b:
+43727970746f6772617068696320466f72756d2052657365617263682047726f7570:
+a8061dc1305136c6c22b8baf0c0127a9: