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-gitlab-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Tue Jun 4 21:19:14 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 218b43e8691fd63b26a8c100cefce0e4fe287799 * md5sum ebbeec72b41b7031a74e66f00243b620 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrlm7AAoJEIXCXpWhbrlNy9oH/A6140HWYwiU1OaJ+2HcOGgM S/FexeNuN6i/gzZzDUqaRWW5DClf1cDRNv6v/eWdRsM9tZna1fkdIoSudSDr3oPM 1992QfWrgkIq86u8w1hK8Yf/KTVHtCZqY+04gUqU/ameUEfJRS7pz15lWOJ2CPaF lT17XXCKVRVZNSPfEs3O+wv2Rp4LzetAmf+h3rQNMxAWSeecl+78pC+QZJ3iTBR7 Yrzp9S4eB+5pAklFSnTIDKcY8twfAxispVPWvNGLzuAWHwJBv4+6myeAUiPDxqBM qr3x0ZuvBjrhIbhiO99EumtmS9VoR4X2LJ2ppyKRaSRdg8JoNm+acwqWr9WuKoc= =nVkx -----END PGP SIGNATURE-----