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-canvas-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 19:57:37 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5306814feb19233fb004f0427c3c10e78ad7da8f * md5sum f7938f114bcc73a52144b62beeecf3c9 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) iQEcBAABAgAGBQJRrkaZAAoJEIXCXpWhbrlNbG0H/jiz6/U2xD1bzZNfakwE7nfG Aei+HT6yAqho8whHukz3PECBm2TibWZw3qppD2VaaPz1FUc2pvbS6yr8fHtHjKCW w9R5RzTTM/dnsoIbV+MRSLQMa/Hlf/dTbkZqerWZ3FSnylCTR4Zr+l3mLEVGk0PL ea494FvcaKCoycLlASEPoJAEDYIBHNxqW1GAN+vIJRRtQ68ffaFVI2Hec8FX6+6R az1bhbg1KyquFxg7BQq8fDMuz3Q/7sgMijNRHSDKUzNZs0gtPhaE7c+HtpfjI25P Fzr2asdnwKvEcw34AG7RiDM+hPT9GQtPPkBtpaYxA8rbJZV6y3dqvYo3X7BLWwg= =PXc/ -----END PGP SIGNATURE-----