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-tracks-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:59:03 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9792a30f4c628a0ef8717a2012ab610bca5f3aed * md5sum 8dc3cc719399f1e8c4e9a3c4791848db 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) iQEcBAABAgAGBQJSc3tYAAoJEIXCXpWhbrlNv28IAIjDWx2w2agny4DdjumY5dXB QlC5xw9Oj3UaeEQ5dwGPcFm0XVZ/XbJhANlKskrxjZJFQlePE1UwJyMQB5pGPK2t 3bukyPuNTLmMoGjY3EvP+w//b6XbwE3DJ7NoKNSblvzdjsMIcxyLjsMB+eqtUsdh wPk9avyb7Wjm795+oLHNbp4t+wGSy4si16dudrgAgZPnR24DlHoDsD/K+4OyIEDX PBSg2BxBkJLdoaWx29hgE8+Iehu0QsHr2uQODAxGdkVen400gTidOgvYHlgU075G ZpFhikKfskODVjxI3RZlckowJgke+dWECUeKJ1mY/IQLwXucfdkH38agp1SNXf0= =gctF -----END PGP SIGNATURE-----