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_amd64.ova.sig gpg: Signature made Wed Oct 16 10:26:19 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4e3597273d35b8439ddd78d8912d1449a4bcc137 * md5sum 790a774705c5a9c49a4c40c11f9e78b3 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) iQEcBAABAgAGBQJSXmnBAAoJEIXCXpWhbrlNTuMIANXAxx0eBIwQL9ffPCzfoxlV cstLNILYHrTOgl5KMq7DpcUDyr2TM0TvwskIY7sHVYI3F14zE5Br5xqAgs8OBHu5 87TK/WYS0KkIzl3I8XuV7Ph5HF6fUt0CxVFSSNUH97+U6rcxsi6xC4NGLcp1JCWl 4uspGpAT6ouIRJtlFFChcfaSGWQwM9sySxBRKLT7pJQUsACWksEK5MzkY0gSTem5 pBmrw6kc1tLgz17XYI9ZYnJuE5lVbFfNa1GSMqDmDvFkvI8VG4e2Jee00THK7ciF Ed+fccGZLBwosL11CWr/0VQw87EujHm5QHEwRA6qOEcS8VGZqOGdccT4kUro3ws= =+Xk6 -----END PGP SIGNATURE-----