It is confusing that gpgsm reports no supported algorithms.
$LC_ALL=C gpgsm --version
gpgsm (GnuPG) 2.0.5
Copyright (C) 2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Home: ~/.gnupg
Supported algorithms:
$