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-otrs-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:05:37 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 35e7b31769b58363423fbc893f911b1a23b15106 * md5sum ac3ba0c59eba97fbefa1d738a0f89074 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) iQEcBAABAgAGBQJQM7HGAAoJEIXCXpWhbrlNUB0IAIfBBxygCP/LP3LJWfR0N3Wp mb2lKLlRuAWlCtrfKZvGsVChQx3zCCVJjcMtR4vpVvG8FOZcWqBmfY0fGVUkbmCH MvCYRx0P7Rj7ykMytfvmZmYV8uS0fIJeF+TsKIAFn6J6aVLCe9a/Cn7wzIMyx1f/ YKME9oMz6rePnn2yGUG/sY8Ueg8TGJuetYNw5FjK2ChNeIUtHpC8ghmzR0m9MxO7 PzIIkm8n6qYwfyXXTEg7CuC0mRCmCNhKKDP8ZxNF3tGD4gOuoDJBVmTxvjRsix4v 2NkwWzOLp617ZcnU9j1f8+CI/+CQIz9PWsTr4233F89vzzaMBNrPzP7U8/EvlYQ= =HQ+W -----END PGP SIGNATURE-----