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-twiki_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 10:36:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 3ec500b5a26ea0c4ca8cb10c267292d0a61482d6 * md5sum 12929fd735e62813c372ff4756038206 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) iQEcBAABAgAGBQJSXmwgAAoJEIXCXpWhbrlNCpkH/3FSYTGruByXoE6XGiRMC9xG qMhdj+SsqOJlIm/StMS/XcEzQkpFg3U6UK23gPkvNnPJvK5fDI8Mgf7S0V5C4v0t LcwIR7K5DFVYxruyoNFNF98QIHn9kTBYSb3p9MlszLrIxcXE2yXlgPpFzeaE6EyV 3XcItglz0jkh73DkaPRIXtYnqD6AMuKk4jh25DVLFiiKNsxpWG+BlpIZybM+/KL6 QPkv1qLGucYHghm+NNCifIT46bvRKyZOCi7MNxTP/EldMbZ/kzgapMJwQs32gVwD tIDrAOLBT9j9Hy8PtMQVlmkC2hl1PjP2Iij2VZW4yCcCA2O29SujrBCso6QOHi0= =nwmz -----END PGP SIGNATURE-----