-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --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-e107-14.0-jessie-amd64-xen.tar.bz2.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-e107-14.0-jessie-amd64-xen.tar.bz2 7725e8b935ff46db8417eb2b14443897 $ sha1sum turnkey-e107-14.0-jessie-amd64-xen.tar.bz2 b9d95c3a9f11399c38410550a080658222e5ef78 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiAAAoJEIXCXpWhbrlNfYcIAM5qkV17hNqhdjhTJeykXMlB khKoRc6BGjtzNxv25omp3iAvKXZOEbkDZG6M32OVfrFA0qvKFbBy91F1Ch2/MZ+0 fiEmsOhldg4b7x7GJZCPXlofx6Kb2izEQc5n6BDAig2gUjoJrPRwdqwRgkHCpl16 5ExaRKf9HEJ59sL6bCIpGgXrlRV5P/VoDuWGjvDhXQ+RlClqJXSQ0CigO9L6qSSj mTmd6cdu8kro5fBBOxlAuENq5i0ehGrrH5tKZ4DO/YxDjUfQHn9IEkSnca8XWtJF BFiQIJkA1gBXA2lLljjTsrinsEmciZuC8d5VZaFNIzWr+TJRz4cAHwpL+lCSE6w= =sA1T -----END PGP SIGNATURE-----