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-mambo-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 21:57:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 41a3ea427812095c3576a2bc7d9bcb1a093e067e * md5sum 8cb13efedae9e3ce95cc2df3f0384e3a 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) iQEcBAABAgAGBQJRrmK5AAoJEIXCXpWhbrlNnZwIAJFSXnTmOgW24qveP7qVYbbC VNY7+8trmZYy0JsMCwn7rT8iwo6fxBzkmDFusxyzLUS3wg/l3lBCErExv8cQzIf0 jhB5mjVUMGenVuGP1iJUmb1cuoKb1YBtRIzJ+lPlWEr+P9EslQxK3isuJpOFgz4q sng168cu33V8LU/iHAUL3RdJniqlXCeFQdI5rnVV2F+RadcrgO8Zvax8jW/Siqby ZF0B1wlYFyMfmhZv/aGM642EAQhF6GLqItpB9PhBcf74PYwgu5AZmSSIdMgYXfBY FLVr/Pxtr4lq6myI498RvDH2c05mbXuTQsM4RlA/wGtMZuU947UTJouRB40MS7k= =3M96 -----END PGP SIGNATURE-----