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-b2evolution_12.1-1_i386.tar.gz.sig gpg: Signature made Tue Jun 4 19:54:59 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 393dcdd04f2b8a98ef13cdda9c07439e059f7403 * md5sum 4a20105eb41cfea2d3e3b1fbc023360b 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) iQEcBAABAgAGBQJRrkYJAAoJEIXCXpWhbrlNUWcH/3dp5n3wkAbjt2M3I8NqAwGk zVUchwk509kJ1yXRllP3AQrj8E17PO8YU9x8b5V84r0HPTkbegyZfGzc7/JP4em9 Ui+CWaaf5S8TiCuoLWoma/0I3CQXZfg5XXVS+mn2ephLXQHQ0anncLJ+pq3jSHIb jf2vloym2zdR9XTY4d4FCvFpETGF2DWzonT7c7BVcRV7SV+Gbo3ImXxEywyr0t7X RTCMDAJqmNvbzZqp304uLK/DAEH06H7es+oApDRBIsehnwJi4dQCtZomVL2F55zZ TEYEiyCQ1qScY+/MiLe+0Jr0Y412ZVpU5pJBit3zkOFYPm4km1MRsJSAPTRVX9o= =cwX+ -----END PGP SIGNATURE-----