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-statusnet-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 19:27:03 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum bbfea4f855f2e637cc7c22062be815783429a6f3 * md5sum 94f0c527abd1f2b41120316c4b594646 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) iQEcBAABAgAGBQJSXZb7AAoJEIXCXpWhbrlNlAwIALO9lPp08AF7k0ty6Nleddot DdBMlqhW87hFlV8xSXuMi8u4YvZPw9A9e6wJ3OG9KjLsl4eQtmrBjhvGtRPainpA WmdekLwm+PctYzLit9W5v1J2WnU6BxUgESpZiIPs5QTPr7/WFixJCBd6n8shyxqc P9ggqgHtbm7G0tCzpP2tiPTIEZLu0VQkg/y2yHtMqsATpLb5Wb+3+uXyVSsOPUGA F9NDlbvfqYgcpUTNz6mWEMsC2iA29GZPr+kkipoYGEbjLJwweFwH+Wre7yKe1LUJ t8lsVHOPYiGksntbAb8UQ/U6y1gYcaN4lsoHQnwZ11PCZ5YQof5nBfMpNHiKLPk= =Gea9 -----END PGP SIGNATURE-----