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-zencart-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 17:07:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 97ebc3cbb6adfc1a67f2b0b8760b42bc2d6afca8 * md5sum 873e9d78b92a95081bf90af4284ffe00 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) iQEcBAABAgAGBQJRrh61AAoJEIXCXpWhbrlNWPsH/2ns6epqgv9os47ub3d4hZ/e h0z1Ipa948XN7mYyBlYZA/KC0ZOFXXOn0cibg5Pr6deCRzzklxMRiYXXS6EJ+KQL WwCOzDCJQNny0OAVqpQ5BuuNgHPsJTh5tVnCbSSxPz8qpmc0IQD8Iy9TQt70/Q2G 44LMgF2S0Q/h5HUPBNsl3D3Ii1WDx5Ol6k0kdj94yDUD2uWsX35WDKCh339mChVq KnkDWfhvNTUqIl9JBWcbmhgbaGk+8/ghtOuCd3S22nh7K1/9DdkvKetEl4ORWqzV XZennevpzqnW/YbsX8ctRkbZiLqA8pbCDNhaNGUEYKiTwz1/AzBn6/y/eVTTH2U= =TrAY -----END PGP SIGNATURE-----