The package golang-github-secure-systems-lab-go-securesystemslib 0.4.0-2 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-secure-systems-lab-go-securesystemslib -- More information about golang-github-secure-systems-lab-go-securesystemslib: http://pkg.kali.org/pkg/golang-github-secure-systems-lab-go-securesystemslib