GPG Public Key (SManSoft ECDSA Key) <info@smansoft.com> has been published here:
http://smansoft.com/gpg/smansoft.pub.asc.
Please, use:
gpg --import ./smansoft.pub.asc
for importing of key and
gpg --verify ./[some_install_file].asc ./[some_install_file]
for verification of files, published on this site;
Also Public GPG ECDSA Key can be imported, using:
gpg --keyserver hkp://pgp.mit.edu --recv-keys A408B0FCFD774649
.