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-lighttpd-php-fastcgi_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 08:55:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4a0a22de815a4d291778a401e37175a1e6895176 * md5sum 95702d4489b4357699aa16c536291b37 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) iQEcBAABAgAGBQJSXlSQAAoJEIXCXpWhbrlNE/kIAKtXiU44bQlyr+VyAKbaeBnc 3JPKpil+naaVSNuGajQP6ikpB98mVMlDIlP5axdMIMVSt2R0E/P/7WDg7mGp+Fe6 VfNdUndveDVeikc6wj8WRmp2QFe+aHYGBu8g1RyJh3WHDCF4ls0ifFrZ5Tvn9iZz lVJgdGlrMFzxFVASpcze7ikT6jNjSjYvUgw5JNMb487MMu0do6jvaCU5IaBoKY1t LINvh4tHxkEs11OVGgkVo8lXJGYxHr87WtVdvG2nmPHSPxV0MjuT1hODWyl71oMT GPXhLgP/kGGWdMlSCY4PrHgrKeYlDrzYesCnWuAIG9vKQERDa+CtNnqCSkyPXGY= =+X4W -----END PGP SIGNATURE-----