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-revision-control-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:18:30 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum c7448e3f03bf8113207fdad683ea6d5219388cad * md5sum 91738fc6547442056c9dd76af858fd4b 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) iQEcBAABAgAGBQJQM7TLAAoJEIXCXpWhbrlNMCoIALZKKCj1esyhEoxbNBAHzT7G ns+IdbFK6vC9YoqNhIZ9MzDT8FyfLL6dM3hxP+AX3fJLZ0blOdqyEHg03TPRKbHL qFXXmN1loVLaFP3ppeLfrSvb34x9t2qKVwjDzIFzpzcC9YZ5JUFwRQu7re7meX9v e4+wGfTTu2uR0dlS672p+pZwyXUA5z7pPD4AylubGjRz5hVuFu9NULL1RVMmSQA+ N2819sGjh1MB5NK7UxAIsR8FOw6bYGLJxMYlyAgKn1tal/qo6ZjfDLb0/OBtwLRV 28DhSyIlhfJBto2Usdis7FJwDS9wOi4uUTaDGrMklGwq2mPCY0SORukCcD9vrSw= =hIqq -----END PGP SIGNATURE-----