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-gitlab-13.0-wheezy-i386.iso.sig gpg: Signature made Mon Oct 14 17:59:06 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d2ab40ab287c7f61dea763a9eeeef5b61fc9a831 * md5sum bc29196d678a214b7e020a3e26048be4 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) iQEcBAABAgAGBQJSXDDVAAoJEIXCXpWhbrlNeuMH/RpsCUWEBL4FrText2buUM8M qlNUhB7Z0/QQAp/XxNNMO3r9w5YGNKlRSmiLple/J9O9qliCCNPVpGQf+F0O4PqX 12rY9VrEg967ZGr69JNiP3j+9AjAV7AuTC79XDTKJq0ozwc9sPbviulBrvt/U2vw 0OVXSuSCh7mA8zd2YABeH2/+9nPYlbN40wNytWjJnunLUZfXBpg5GCkY23YLQk46 KpacDe0BJ9imYmgY3unV8aAK4tL/Q7euGrTEFHXdMe0QMZgcbLfjx7TqAssv9hXV vAnIkVPMRVyLqEHee5RYdyYEfIrofiG/L0rU5GHpGY/J1I4xcmwgIOOJ7kRFPas= =DLdc -----END PGP SIGNATURE-----