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-7-turnkey-rails_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 10:09:53 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum fb1c1f76835cab90d33b8565ac9ab04ec0e07378 * md5sum 9e5da756a0e89959ae8b2bb61711fead 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) iQEcBAABAgAGBQJSXmXnAAoJEIXCXpWhbrlNWOoH/1LNWE//vpDB6Xan07Y+WOei 0uS8oY22Tq4T5ZJ+QF5HCh9nQ/Ecf9kJvAdDqNvg0rI1mINntC5KbRHWA8Uy+QEC hBZcEm/+qR/8qJuIn20dd34Q5tyw1VFaY6Y+VY45gXm67CI2/O0fS9qfHMH/dfT1 f7IciGnGEKJmwtoRX1+CaKRB4nmqGylHSWyrtSYzl6O1OofEF1J6Vb2QiZ3DCkg1 FrBx9XQRsBzSPR9uRKhFEyCTDZDKIOTLnCxtggVvR538BO8NnUJQt2k/+3iAPiN5 48gQFrBEoBRmNkorZ+aRpx8MQa5rRCfZR+rFB5Kw6cyTP4dlY53QtzFwcFgxfFE= =deHK -----END PGP SIGNATURE-----