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 debian-7-turnkey-tendenci_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 19:15:25 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dca64799cfc5ae1e6bda2e93393df098dd1abd68 * md5sum 6aeaa80c6203a5d7b5724c609acb2c08 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXZREAAoJEIXCXpWhbrlNK+oIAIPPZPTTlrXZtS9y7m0CjjM+ E7/OeTmSHB+HAz2V8+wu4NoEhEcqA+3N46rteKVDmnFcYi0ByrMi2bRYmhh8Ydxy iI5YH492xX1fDYqvqujMAzEuzXJKdqPooVg7Yv6zDH6Ah1MP29kPFThf4fKNBpYW 06sCygRs1pcwugYPRAifRo3ogQ/lrpnsCi1wzXflq7WpH68FjkAL1vp4zTDU9PHh Zs7Ww7h3y2P4G4t01X9yRtGUwq0/W6wOCJhy2uz+zRb4yqy3Uuh6O5yBNNSJnO2n /jZce3kda/E1+zE1EuvzDsfFtftm1a7pk0lV135EKDLajKDIkN4h3C/n7vbYzWA= =VZrm -----END PGP SIGNATURE-----