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-drupal7_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 08:19:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a7ee4a38159092834911a931cfe441a126355477 * md5sum 18c94b44fe085009f20996405aa610bd 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) iQEcBAABAgAGBQJSXkwlAAoJEIXCXpWhbrlNOpgIAMZreERaTlUzCY/xjAn3NhbC SMO2o6icSYqj1/FPnZDo4wANmOzZrQHqPuEQlbjqcX87BX/AZS0SKpu91b8ogg+g 5XMCo+W9+YB+7aOsl405cXs6gNJdtQjIWGWn4w1mj7Q6vktDIckSW76s3HwPKvje w2yz29PHBqqz1yTaCKw88AcBgzfAyBYBuq3mKgoZPUF5LeyUFYT+zu79c4QsFc6K T/h81ZOIIW73u18/XFfm5BSSCkW9WVjI8AHEjgd9mJpBBYGcWZ9W902pCzq0waTN I0Zoy3stbrX4qOTOP1SmhazyQB+rW+d2RzStzeTIDut5QHXWdUMadbukwBo7RQ0= =QPuR -----END PGP SIGNATURE-----