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 turnkey-otrs-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 17:34:04 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum fb939ba260bef2ab37a9b26cc4a728cdc66ebebe * md5sum f9ea56339d617f2c779e986c5d3f0820 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) iQEcBAABAgAGBQJSXXx/AAoJEIXCXpWhbrlNMf0H/A2seXwmJBGrmPMygbtnMh4X YxwvWBtAGSBelfSADxiguVx0QCNzE4xnF381KFxJ4A1qTo/AOwDZGZWEWBUQay/N ipqM3d+teH7sx8txOYkFT9aJ2+8Xicah01zOd2iPmqiaVJra6hUZG4sO5fEbAaEb /sRt2pLCCKo4l2vtbl6vaU1pKMDFfeFgbn+9zZ1eb/9b/zItBtdJdu+wULE64aTI hsFU/EnhOSAsOkzCLBzs/cuE1RkuuyKcbNJhRaOfbBJvQ62sHWPfTMshxtgyinqB +Tkh08vfAhyuaPDpQu6eT+sgVX8m8hrTdTIT++fTt80hTWOPh8ENGoZgCsLY+NU= =YuHM -----END PGP SIGNATURE-----