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-oscommerce-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 22:49:18 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b674f4b63bdca347d4b784f21265987f6b69ba1a * md5sum b3fcb3c07af5efe28fc86820e1c44573 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) iQEcBAABAgAGBQJRrm7gAAoJEIXCXpWhbrlN5ggIAOulMdFw4TY92RgoLXdlslnu whCGjs1RVdfwg+d9v2xhha0230VtjBCMGTpuS+D82O64UcJ39dncD4QmaxL56aRy yl/luzp65Vh+LTwLlWN6WF6NtSiwsNRcNliwOho08jtGrbEzSHd72C9W/5gcWyBN ygPFrbaNdoYNclINlGRxZhwg6JV8vH9WkZ2Xgdu3yNLEBf8E+qRW21dDMjjDSapO vY2k1knHmsAQne2IVY1/jJVrOwjMFnxBYoD905JN/14qK7BI1xkZXXyB7MbbXaGQ 20G0NMJN7UU23aWOCQcQ3BMuYoCoew+sNuUxVjA0V197Uco9XOuBBs8/KmoqL+o= =soMq -----END PGP SIGNATURE-----