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-phplist_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 17:47:14 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 579b9c83b5db32f6d1e4f9b2efb3b80e2c97bd00 * md5sum 68ec738dd398c47d07dad688ce510248 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) iQEcBAABAgAGBQJSXX+aAAoJEIXCXpWhbrlNbuoIAMSkNBhlUjWiLEcy87PuigGJ hVI/VeeKEFi44qVPZ5SPqLQedE4na+eHbFQD7Cp8ZxBjDZuDXONmKRW8g5FL4DgU DVgjrh6YV7M7b6oCb30ySn/wRFMSYhb6wYxWCQ5dOjMd+o+/mKiqyux3jmuDb06W gKhCBEIJwZSAdj40+ixmU0/k3VELwZQ9rK1/A0YkIWgaCIv6+4kEfyaGR8EchiKd MLuiF2hcL0ph0MsGP9D2QyekWzG9ZWLK+0DuhmKtZE7yfLy1KzEUFVDUKydDA8RU 2TE6lYeiVKU6Abm7UqWvMd8B8JJA2oXBK2scJqAn+KUI8a2EeBHYa2piY1uNkwQ= =EaJz -----END PGP SIGNATURE-----