Botan from security:privacy project
Select Your Operating System
Add repository and install manually
For SLE 15 SP5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/SLE_15_SP5/security:privacy.repo zypper refresh zypper install Botan
For SLE 15 SP4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:privacy/SLE_15_SP4/security:privacy.repo zypper refresh zypper install Botan