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-appengine-go_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 13:27:17 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum cf003c2bd9eb148eb10e982b840e125e042e933a * md5sum cdde47b9f03179e2e7fdc8260f23aeb2 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) iQEcBAABAgAGBQJQM4yuAAoJEIXCXpWhbrlNDvsIAMwUttG6Hla/WTaH1vaH0bpG wL6z9r7w0+FPxVou9Gt1kfK0/Dp5hzDB4GHnMeeOTlHsM9BcepxlcuigkikU37n0 8ZvAojUJ/CwtpBdMzacl88uCOfukZGuGIjG5wir1DwMPbuET2j+kqm7XuzILmSDf YSHwpijxeYxgu7zQqQ8lSRU8BfaW3SMi9PWvN/WvS/MXg0L0Q53hbu8wiuNAnLay HU+rxmkrWuUfOjk9RYZVKKihKaGYR5r1MxFOwQUm9e7FlOBkXQ1rbgJ8UJT6cgdU Je6llBszBfK3tt7eWH8QlebkMqOdRRFKbwWGzXqV6ZKAEvkEPMtUFqPpwE1AN/M= =9IxW -----END PGP SIGNATURE-----