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-ezpublish-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 15:27:30 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum e23772316769b39fe8f6354873d1a8eeb1a3f4df * md5sum 3e676d6940be83e9fc286fb0a707c8a6 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) iQEcBAABAgAGBQJQM6jUAAoJEIXCXpWhbrlNRcIH/2df1nShQzqHQWl3gOr4n08c SooMMEwPg2XBcDiFA9TlsUK9qOWEfx0M5MY9QOdMD1qr+PH+9M50tAOeGiSKUtss myZW4MZAsSwfUS+RhN+7WFZmatrMEm5SaFFlFDrugpdN/XXTMsAkvk2VZjcx8C8J RCmN4jIyfJyzivE7tYPZDmcb1nlakY8vZVLjDkeiETaMgQQFYhdv+keEGSR+1Hyv YPrNQn8c4S6lhLlwMIKP65Jr0eH3dG+P7RjGm7WqE6dIrHvtAz+qr1lvj3sro8co uNtBX8E2GGjXEj5g17EAXzIfDotwpOCwDU2aG3Z0llTL5arARvUTIy+aBhN0T58= =Wmb7 -----END PGP SIGNATURE-----