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-12.0-squeeze-x86-vmdk.zip.sig gpg: Signature made Tue Aug 21 12:18:14 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 586a7dbc612f05e27ccf79622e88f50333946b74 * md5sum 0471a2c053809251ae92c6e5d16f90f1 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) iQEcBAABAgAGBQJQM3x6AAoJEIXCXpWhbrlNy4YIAKSq2i4kgkhxdcf4LbPReiQe 50J2n97Q4rmoPCw2i4it5i1UGB11DfQ40r8fqdGSJ/h+Oo9JRZewSTwA2Ex4OAF7 1Yz2wwd/0+ekfeofOJsxrJg7N0QzCVa8jJt74/RMNzPHA5ISs3hsL16MRRCa5Il2 2GnM55eQy6fL3nijSbLHXc5c+ImE+vR3lv68S0+hrssmpCBJLSHG+LLncoyRlf+9 PVMSTtYXq2cgeMpRCTOsmia7GpEFOdT4P65PGCkKn3e8B4LMGFskomzwj8McBE3G Iw+pPQJphdGtcoCmJJ0AOceh3ijsJJ+/5SOCOl7x2rtn3lCNgyBWCM31urv1NnQ= =j8Dy -----END PGP SIGNATURE-----