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-phplist_12.1-1_amd64.tar.gz.sig gpg: Signature made Tue Jun 4 15:03:34 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0a3b07274bec61c0932c5d67f15c19cadbe1403d * md5sum be08869cb1219b553cfab529b5603676 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) iQEcBAABAgAGBQJRrgHBAAoJEIXCXpWhbrlNWosIAKwXHbNZuc9Pxq85r4bE+X1p f8h1s3Y9dMv3BtmjpgJ/VBhEYP0Dse7To8QRBkCrVt438UTND2Qa49JZpSM/OasP C2b+8r+kQNM33na5I47/OKSql+M0p5kOXjpNKp7eRBqss2gBnMqLe6gmlcgVIDM8 yz3/gxDtmDDINLOS8qd4i0VdBCz0HfXTpQLdwUNixAgBkjC0KDoaCod/zbalabmc t+89HBqGMGK56Z8nn8TwaQQgba+lcgSh+xmde44g5n0M1QchLPtSdsmbcrj9D6RQ P377TAGzN4XyN3ZqpCsZjDSA0sULrX8etTPtZXPGjDsHl6mmbual1PuA5iNwzNk= =/Nai -----END PGP SIGNATURE-----