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-owncloud_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 17:43:47 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 907eb0708284e702ae9453f77bd4ecd378d52e5c * md5sum 91575bef58aa2d05097f7d395296259c 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) iQEcBAABAgAGBQJSXX7LAAoJEIXCXpWhbrlN5nIH/j5Tw6KI/bI/9c4wdn0Jd67X vcGm2Cu9fFDZIMCHkF+xD4lFwhGfzedejlzd2Cp+h5YhuuyKo4ZxXTbxh3y7Ow6d lQEEq7RTNCsMBeFW9eRk6JSkSOHJv7YQbhl8mAcivuuCgHtXcAMv5RdmUKUeFyil MJ///LvIMUFhoOT0FtjEwvNzILcF96mFL61F0Rm3M/JJH+3jhaFsH2akVnerEJ+2 BM/aTGz8Q4L38ye9TWkhIMPKA7zc7rhUVtej1m21hQunpHRdiPcPtd6drJ+v3RbZ kiZ+OKCMbGin/EYd5oTPnnwFwWBL0tBscx7xWF4yDKY7dc3ncmEBt0fJoi8/WAY= =ygeO -----END PGP SIGNATURE-----