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-tomcat-apache_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 10:33:12 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 8f2b6ab109339c71e09fb764ae7c80caaefaaae7 * md5sum 89e428bde5e2a1b2f2dca7206665e989 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) iQEcBAABAgAGBQJSXmtfAAoJEIXCXpWhbrlNmAwIANR9EWKblKEzvKL7P4JZPD5m 3JN4DkV+3eOHzM5/0LebxdhxqP/0ftctVOh1Weu0Ats0+SG0VOiFMlvT1HmF97aM PYIBhcewM3YC9M/GzdCvZmk7rkC7KezwwkFqPHBGYJcEwYVe8+lymqy9Cg4zC3sG kMTBAA0O4PiCS7dREqbremYl3fCqKzKN7CBOyZYGpd57nKNfV8AcuisZvyXJJK2S Nvc835oPgdMkVWXHovWUosKXC6Y3ZEpRBJSPY5za0Mh/y1AexFjAzZF2WD5BcLAL 8lDEOMRIJsA8sR8FYGrnd/cSMdXUr52gQJZaLxVGI3IM/bdqDWX+M7dko9KdAgE= =papP -----END PGP SIGNATURE-----