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-sahana-eden_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 10:14:58 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0d1893e1265ce989bff0bc9754e7041bef712561 * md5sum 01310d28ebc2c6ad87711064b38795ea 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) iQEcBAABAgAGBQJSXmcWAAoJEIXCXpWhbrlNnZ4IAIbDKjrs69eFKJg2L3wjtHDx 0cOh4UludLvnCnt8RXmSSki6OFIvac0MzRcdcK4Qbb2aeuEtF31+w11Y8P1o0sdZ XkY2FCZmNYGILIsROr0OuPWhOZzhKhQ2R6ydgeVRnjNyR9XtNT2bMdJmEDIlMKHb GLqGMqQDlsqvJVeqfUfEHPwcbxUw1h4viVGDN+3/mIvnZDw0NWEfyz1SSrYPa12t nVYeKmMQH4GWOflUFkpL0uraYE2dNJcNcjPAd/kjcpcClFC6kaTrhHNAfnOGyn9x WNvybI0mJuJWWYz/yKsr1cXzOKcFP5CcAiRPflVs6ZUnD7mvyvDJAf0R9VsAeyA= =iv2c -----END PGP SIGNATURE-----