For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/openSUSE_Tumbleweed/security:privacy.repo
zypper refresh
zypper install steghide
For openSUSE Factory zSystems run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/openSUSE_Factory_zSystems/security:privacy.repo
zypper refresh
zypper install steghide
For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/openSUSE_Factory_PowerPC/security:privacy.repo
zypper refresh
zypper install steghide
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/15.6/security:privacy.repo
zypper refresh
zypper install steghide
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/15.5/security:privacy.repo
zypper refresh
zypper install steghide