The package golang-github-protonmail-gopenpgp 2.5.0-1 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-protonmail-gopenpgp -- More information about golang-github-protonmail-gopenpgp: http://pkg.kali.org/pkg/golang-github-protonmail-gopenpgp