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_i386.tar.gz.sig gpg: Signature made Tue Jun 4 20:24:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 369ece5306ec88ba5c29c8ca43a32a73c1b47cad * md5sum 157c38b4ef3e2112b03d07ec7ffb7dce 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) iQEcBAABAgAGBQJRrkzgAAoJEIXCXpWhbrlNyU0IAOmC+ePEV0fnOnOpftc0D0+1 FC/0sGm8pEOE2/EkgmqYHMCGazoUQ0Lo2yKJodlzA/aNzeG1eTczhaQ4Wuz8/2wC dVHVS+XzZhFVH3ryl7jNVI/wHNPxphWkXKydMCCLLA6V+WrLdIR0STN5cMpLVsKs wZSX+pHKsVqyGTLbsJmZjKdkr+C2lo3Q9Ger0tkyDOYj0PkDhRFPr8BqQG9i5h47 24j1t7+3dD0qd09PJGMLb+/b2nfKD0zYb+kQj6sO9EdntQBchmZvxQwOEuglsaVR BtSlLBNC4HMDFgR9tfrUccCAsyjdoH6Aw+f6UG8Vx+wtJFFNoTNvl74CKvDuXEk= =cqu/ -----END PGP SIGNATURE-----