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-ushahidi_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 10:40:50 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f0dfcc219940bd51452d07137e03de56eab66fe8 * md5sum 8b2b1f1c83c4f714a16c23c9ddf48c1a 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) iQEcBAABAgAGBQJSXm0sAAoJEIXCXpWhbrlNYhoH/jG0MkZthjpyoKrwO5AgcVFT /TdW5m8n8vkc9ByCWVLsaQM8AJ30jv4OaaPOkmyGy5Q4cLX8q60r0RNsaqSr3SNq LMPAxRAzor3vM0K4tDl0Hmmw4w+QaqZf+eM18s+AJ67JFqqCqOwogQ8p0ZxsZI+C 7eC1mhamF9AojnJespUHYClfNsvxWynVZl/+I60cc4wo3hrKPO1xbf4vTG9Wl8zK rkzpC7HdrnmCScNdeLiLtKxAgDsTytRj2Qn9+kGaJs8DfMqZPVETiQHQlXJ9zJKc bZ/lgTOD2EJv46SYgibo9kRGPql2Ziz33d8PHlt31pbeSBf44VNCQ/q5p8m3j18= =uE4e -----END PGP SIGNATURE-----