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-clipbucket-12.1-squeeze-amd64.iso.sig gpg: Signature made Wed May 1 12:14:46 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5d18c6caf21bbfc7245f9ca0816677eb14bfe997 * md5sum 71f717a4a0190486422b20004d4245f1 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) iQEcBAABAgAGBQJRgQcsAAoJEIXCXpWhbrlNzYAIAIyUcUnaxE9vlXYlvkU7/2IZ TPnkwbGbjvVAqicEgQTQFzzrZvnwW70BJVjmOU4ypejS1UfFXvpY5aQgCVZCMubT um3jJ4csI+tFOjiYRD4mpu/qwFgFdCvTTpQOZxpn7HHbaBnbbv+l2nU9/fo772BE BBmKKR5kRniqcPGTrWYYJN7hU8NDTKZVfgbf6ZRPjC8dS64qBTuoQFtJmn/L218G 2eVmgfxUJ/V2ZdGkAoJIw1Ml9DyDK+DP30COoGXKiXhfKEM+1DfV7C3+IbAeKvTz LMefQ7n54Qu5gigxPx/uDNUcCdhCwtrhhZNdJqUG1TbU3B7fxyWkDxy5Ab3tfWM= =K4Y/ -----END PGP SIGNATURE-----