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 debian-6-turnkey-collabtive_12.1-1_amd64.tar.gz.sig gpg: Signature made Tue Jun 4 12:51:39 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 2fd672b6c43ed5af042e4193ced1525182b9477e * md5sum d7d14e4451e6fa339b96a320964f2c8e 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) iQEcBAABAgAGBQJRreLVAAoJEIXCXpWhbrlNPs8H/3elI2Ny9AMmrq1G4rwynGE7 vZ7e6iD5KfV2FPxtSIw9xXaRbpCyzxo2CmlEj0/Wa/hMjIfYMFGSLwsiylWjPXMW y3rVd6hWhT9PWRJes78XDw2m+I7LeR3Ban++8psfMb3ycme60t7rzboIiGjYDPc+ 64oa47pCFNZ/yMCZGw6KHuagQ8ct3wvNkF1Kdl3BFMoG6CSnG/zRIyk+M7DBAHpw HshuRmzbnrA1kG+/AG/cLFUbE1d8AOt0AFTVHTz3yPlkgSWiXrzotVIDgQmwoZFV 5KQgxEd3Y8iLrkQ+ozoR03qbyCXO3POGtbn1NLu8t8dY/OqTB+1nGi1lX66BRrw= =9ZES -----END PGP SIGNATURE-----