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-tomatocart-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 17:16:27 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum d074e76915347f1ef90211786199040502d6221c * md5sum 84d90219c816af287a03fcb018743bb0 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) iQEcBAABAgAGBQJQM8JiAAoJEIXCXpWhbrlN2BcH/As5sCN73jwvqUCdM0IH66lJ 5pRXNErL6//EsLCcN3TWGVX8SGTZMyDlVaol/2046o0J3TKIV6axn+xlVZF6b9Qu 9XeAbaOJHTYkAeYh/C5k/Mw4HHPSLKkJvperiPgFh2MWKTVI142zYAbx3WcHsqmV VheSZBlNAtskOWO74a0Sz8+3+IJ2wC1OHTuH7EO1NVSJDB0gRZ+O8Nw5wvhcqq9W 69vauajZlV0zza1x5rXjubAfKQd4SztxcmcUZKBEBatiFKa9utVss2eJHofcymYI RDQ7iGK0ZS1obul2/MWTgPrfOEbxcf9u1KAQ++MBTllhFSiOXGChTdZII1Q+6So= =UOVR -----END PGP SIGNATURE-----