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-piwik-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 23:32:14 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 649fe0b1ed9f09fbbe0f150b8f24c252cc301391 * md5sum 7357bdee5f7e240d0e6d7ff5c7ab24e4 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) iQEcBAABAgAGBQJRrnjxAAoJEIXCXpWhbrlNfsUH/3nFegPi3eu0H6aMdCKs09Av sxiRH7lZWv47mgoLDKotGgt5akEI/m5xpEOw0SgAV75rlNjRC14EVB/Vj/HTc8nH X83lLVR4r2IqNAyPC5FGMMKDAq+KkRyteVADqWxrVSqzq/m8fUZ26jXAMqmTfHEZ Kfh2MXMpBuuMLCDaLnotOmWOCb+WZZWi9RZWq3q+oataiTJuYMzJqqwz/QMGYF6q oDUSn3wreCq0AScyeHFYqLtwV7a6c9445KzB8neCgGQuDCCrAgnW6dWHyAvCO749 NIAMcKjidzZYR37oFeLvPQqz+Bko7XRKp3mln/G5eDGwt9GRJuawS/KzSnMc1n4= =wUV3 -----END PGP SIGNATURE-----