pub nistp521 2018-02-21 [SC]
1E56 5FA7 B310 CFC1 B144 D93C 2DFE 3408 5E97 CE47
uid [ultimate] Shugo Maeda <shugo@netlab.jp>
uid [ultimate] Shugo Maeda <shugo@ruby-lang.org>
uid [ultimate] Shugo Maeda <shugo@debian.org>
sub nistp521 2018-02-21 [E]