The package golang-github-gtank-cryptopasta 0.0~git20170601.1f550f6-1.1 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-gtank-cryptopasta -- More information about golang-github-gtank-cryptopasta: http://pkg.kali.org/pkg/golang-github-gtank-cryptopasta