rubygem-sigdump from home:leblancd project
Select Your Operating System
Add repository and install manually
For openSUSE Leap 42.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:leblancd/openSUSE_Leap_42.3/home:leblancd.repo zypper refresh zypper install rubygem-sigdump