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-processmaker_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 18:13:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5223932b4b373f421b2d18be13a76d43125994a0 * md5sum f993026f3426ec0a39197cbbd3b0ad87 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) iQEcBAABAgAGBQJSXYXAAAoJEIXCXpWhbrlN6tEH/2pmfUTrr2aki/Z93VXIDgpS VZWjBmOsXL3udkq2JgCV/vjaxjqkRsJSw5QVWPdTSnGk8BACFoxera543cKU9l/M KptLLDzRri6zyFL98q0ryWrv1jxYYOO+QmKWfebarnTq6hSo1YJ39dx5KUECPTOc m7xTAa4TVS1mAIIax1DRGTulfJiiK9vlOy/SwJiAqcOjyPryOVq7RBlSp08/eUlG S0GnNX6oiuHGz4PO8gENoMBZN07++MkPTEJA1EFmT85Vz7b21qOO3LEdw4PMgJFf ZQnpb5dJ3pfVFe7NNM1NOlrbh//40by8gguSEsO7B3St2qq0M5tM+ZSNGXW2pRc= =POLu -----END PGP SIGNATURE-----