This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-etherpad-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 13:30:31 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b909a15bea1ee97f87aeae714cfb7bcbf1b78f0b * md5sum d703c11423422a3902fd258d9b9ff27b You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrevtAAoJEIXCXpWhbrlNW70IANFt+hSfHCJFrWnlK3CrrHfg ir8KYP5LyJk4C4uxLSuFSp+zRwfDlyZFJkuJ3zrRd73YOEotKBhZ70u3HnYrakjj V9erSnT2wz6IsXKKwRKmKKqTBcu27eV33GUKpqyWJl2hJHs6DjvgYF/kW1fkFhy1 SAqygK7rLRCUwPQvfIO0uxFQvfYD0afySG7QfNZvLAQL2mDqt8JbwFCRc1e9c3kN sQtlJOVk2EbNmWblEZl5k6XYF8ZhupQUqyTGJI7mm9VRD2XZXLG50jZ9SMqv93EQ HyAhDd8n26dr9PNHomgPgCs/umAOpA7ObRGG03ZfXYPmQCcPeEg+DBsHz19saG8= =emIM -----END PGP SIGNATURE-----