xmlsec1 from home:chajain:branches:Cloud:Openstack:Master project
Select Your Operating System
Add repository and install manually
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:chajain:branches:Cloud:Openstack:Master/15.4/home:chajain:branches:Cloud:Openstack:Master.repo zypper refresh zypper install xmlsec1