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-ushahidi-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:57:27 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a194e9b1602cf8dcecf0612eb4e117bde4bc9579 * md5sum 54f029ab3b4bb1ce3426850261efb1a6 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) iQEcBAABAgAGBQJSc3r/AAoJEIXCXpWhbrlNfn8IAMSJca9FQs5N3R84WBZNO6Wr P97TjIARgc+27wwVabdXOorGj+1MoGT8NMrd1rWi5sRbikXxywTyqz85Q2qxbO2R xPH2zZ4kL5bWVJh9hpd4t4stlUbiewWnnKSJFJNlJMtLAHP5t6EA6vd5fcvxF+1I 5r5yYjdfGZjetCJM6dCle5eP2uSiw1FRLgD3O3s00Nw4tu3MWfB7Y6rDRM1oMLtw tRD6HPiAP8UJPcsAh3fOnjKKdKsyi72OHBStmwHEj7ZAt3ADKnNjQwTSxciDhTk9 7t2iI7Xf2/QAP26QR/1TUSN/f9yW+9Z2B8hnGD/F12lyGJfbva0DtL69TEDr0z4= =vKf/ -----END PGP SIGNATURE-----