For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/openSUSE_Tumbleweed/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/16.0/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse
For 15.7 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/15.7/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/15.6/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/15.5/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/15.4/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSEInfra:CA/15.3/isv:SUSEInfra:CA.repo
zypper refresh
zypper install ca-certificates-suse