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-phpbb-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 17:52:48 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 01b55704f5aaf26a23565bc2d3e42cb3401ab006 * md5sum 5a26522cc793cf2df123cd576df2d905 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXYDnAAoJEIXCXpWhbrlNy5AIAMGmUUEdhVBGVVSTpDRBoE+i 2wg4hTY5RM9dcv4kGZPFvbhF/tNkF4k5nCFiaj/UoVBafaA+QFEsuJrXUCfjBQA5 B0UjODYJmH/M3SJ+rWUPTVJgKEoqwVfPGh3niVNf1AE8JXJlbJo3JiDPgs5q4a24 eXDbxE8/KRJ2aQykcvJTvI7Ttp/KmQKJZL+09xBg6ASUMhJAyI1M4NLdUJ8xzoES iiG4zdqCRBgeZe1nimXEgjvfNtVFNRfozdm1TrBMKf8yLtUrd76NFR0b8j+qRAfU R/e1x6A7TEN2VQCsKvWVskMCvDuokUFdS+KtKx9ump6u3SDlbwkO/r8QaLzRdvI= =Bznj -----END PGP SIGNATURE-----