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-nginx-php-fastcgi-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 09:21:30 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 27925c5102db5c865386a52ad41cc249fa536a0c * md5sum 0ebde087be8ff91a5c514317d26ae27f 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) iQEcBAABAgAGBQJSXlqQAAoJEIXCXpWhbrlNXJ0H/1GwgM6zxku9CNfmafbXgAij t0rkZ8PqGL5QzsGmNSgoyymv2lonLkk11zfhppL/0wmvO8BGsCPIyYcl2MUYJjqr d/ymxQD1yrsFsWX16CQaRF6n+BU91u+F79IV3IO5dtCGIRR8RVYEPk2HaCacH7bc gfEqMJwFCeaOooISm5iMPyeZUYmjCBIhJjyKFfjKe3392M/v51lO0mTWM/hGPHPb FA/fHDbeUFzIRTbJRzWxhmX8RYT12xg09b481EgzksHMt9NUhcZ/JGiikP5bTc/u aE0xEgoTcujU+512jvcn3S3uvoKZIRVrtCXD01wsY1D2mMCc7FGjE8j5blDyAsw= =iKf/ -----END PGP SIGNATURE-----