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-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 15:27:05 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f5a0832bdab23aaf418f6673c7afb3605763d339 * md5sum 9103f395c74872d30bca4c3c4256a12b 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) iQEcBAABAgAGBQJRrgdCAAoJEIXCXpWhbrlNxsAIAKlzLlyWFMmwUBVG8R21nHLc RyLq6xTOdiNoX0znMZ4+MtR3RdxavKMyda/S+DDN33BQvrdTNfBs9AqIPSXa/QAi br1GvUa7VsKKf6N42Qe4kAGc/HijtsEnLxnlbzmBvLTsu7aZjKTVK1f1h2OlRUHZ 1RnsRNwLpnDBuHWM8ligOfPfdcmWpEtHrDz9nPcPAp1vFJQ/+cS/WiWyiU+cNUEo PethszihNvPPXC92BzQ/t4eG48N/zT52NbAuclASSyvyc1FUipJ+PuKgdZmz3I7d BuvzWXnLlV/JIoasgzGE7vXZvfRrFTcEkJav6w6hu9qEEFh9yhPAWNbpA/90NTs= =ykuK -----END PGP SIGNATURE-----