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-asp-net-apache-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 12:32:00 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c213bec420f2d8648cded6ad4398e7a374e0e6df * md5sum 399d964ccb99119e90ffe8b9d4e569c6 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) iQEcBAABAgAGBQJRrd42AAoJEIXCXpWhbrlNzqQH/RFCJMOyXfLWpy9FEmMRMUe2 hmnyGDjkHVUvlZc4UuZ1X85s5M+kA9A9B1zRipFlQdgLcDFgcNAWVMxZiiY+sGPt O4tE48tcUOLYhzpOcFbo2G5tJL/izN5t+ELGUvrge1TH4sHxTZ8Ir3UpXQ26mz9/ RJTM9JzSqPvb9dzjNuZLTBOICKYEcDjhhXXgrKMpOCc8T6tHl1iQS3+GcJ0aAcsi Frc5nB7OCjl3s7OBmBMMUMXKpb1KJwhgWFjQRnvjkXhkB1j855B9fBwGTI9Iw06/ S85njtzGlftkqOCqRbsi8uO6k2FLEWFzQZoqJltaLMcQYRdDmo22pCTdmdYw7DA= =oGIY -----END PGP SIGNATURE-----