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-torrentserver_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 10:33:57 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ef1b2610fb2aa79acb2c77b7fe72bec4bea79f98 * md5sum 6819ee312140dc3d8ab018886849dbba 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) iQEcBAABAgAGBQJSXmuOAAoJEIXCXpWhbrlNRB0IAMiuclGV7Qp72bVYYTHYx8/x 79LPUyBVGhTswDXnyMUGXdVdq2bYCngncRpqPS2rpmtN7tOhvML2H8uiN82WU3DX N4varD8dKI//m8gX01F6KtJ+gbKQTSRQa4otboOZbSnG3Urk1JCqq+OyZIqLz+Cs wQF/hTOzeb3MXVqnxlWSveNrpoOk/5qAfFoqXdJZEVB6xszOGxtgxfDbf7nBv8NQ NDO1l5yQC50lh9epVqgV2GAeCTO1pS+DQE4rQE7PSjcG0lGsYFBy5P+T102QwjdU nSB9hFE2o1nQv2RHQS/cI2byY10U3WnnIo8yqOgESaQFklzCLt/3rxzaysk3QJw= =e8xU -----END PGP SIGNATURE-----