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-elgg-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 15:50:42 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum eea3aea650722bd8ee9635bac9f39c4f3bef4030 * md5sum 04686515036a16507ef0be22ef1d23bf 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) iQEcBAABAgAGBQJSXWRGAAoJEIXCXpWhbrlNnv8IAIhpnHIxWJYbpa9NfmRjiXK+ DJ0MR8rsVTT5+00X5UHtJkowE5xA99P4at1exwSjv+JnfLfJ7oN0wOcBky4SDerh FWOumivYgx3zFa78xVhsTWFSHiwuZpWzO9Yc/aDp+lSR/OPg2mJmOPLyrfiNZu/C hpy1rRmYx3pQ7alCQ4Xkx7BZCvT7Kd9UXS+PrqpTYE/Eem2NkpovEXNHMpHQchQD xloPvXPqDgboc/+hNkbgRM/v2Bhc8+DBFA00UKGbvR/I6iQLdxuMEpRKKB2awBC9 FPG6muZ0/6ddGviFfjzf6+6SJcZ38EiKMuLTRQGgGTlJ4wSNp5bm5YV2/Rn9m0o= =XQOM -----END PGP SIGNATURE-----