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-prestashop-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 23:39:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5cc1c398911cca67c426ed561cd75a3985a5cae8 * md5sum 8605cf9e4aa87906bc01cc70df36c9df 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) iQEcBAABAgAGBQJRrnqtAAoJEIXCXpWhbrlN8+IH/A0+YjTcD2hp2ra7w+XC11iF UEbvZcudyix+DvOmaca40MZ/yGPf1pI8F5zsHV1FMGrFUfHxQGMouq+D1Rh3Za7b IR6ku1dhRf0nGnye+gHwlFYoUW9v8sZKDN2wwdaL4FHU+uujt9DfOqXfXRej4o3l fAZjEXXZohOYR55s+IinTjm3InH4D1qH6iCnbRnvoJKDs20XnPHrdjx159d7/0YG q7vWKT/coa35iEQGIOyKVoKQBXrCyPuUiwEDpbebZ37GGPzA+PmnhqGwNPXpOMiV fpGx5sS5QCoL9vZm/asHuMWTlYLfzAbq9xBXT/phsykR8M//zQfe6qnL98OBDvc= =YvI+ -----END PGP SIGNATURE-----