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-mysql_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 17:07:58 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 27076613dd874b6c710c1d47dd6aa80f1c61083b * md5sum 10aa31484eca293d2fd0287433c1b4c7 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) iQEcBAABAgAGBQJSXXZoAAoJEIXCXpWhbrlNiWkIALjLwA+mUBifgrxrZNlPRaoU q9Nrm8c98vbQEAcbeoTNWg24SncGdHK4me6nGrBzdCvEljk0k9UlvXy61yYOZD10 UUYAGYa/3J/IHO7K8yLUmmBHHKIAB1dydyiTSOJU6SMKzlmUNkSaGEVstUiwYTpl lDU8/BA9zveZxx73KVoOjhDDZAVg6N7gNj0OO6wO7/whPgBifQ9YgYjvMIwy7LQb 8HlH6lBWa+70RS6Z50/xIDeiBCsTZHRZPM+EOz2AhAWe+bXlnqiOeDUtdIjic+Pd 1E2XC5pBDXIdgQxbW/m0Z+i02IyaBqQQ+lqL0lndey1gM3F3gNdIYYNFt68384Q= =jwQg -----END PGP SIGNATURE-----