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-mysql-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:20:12 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 08d7cdb018dd76780e0610011ba7f44ab543f7cc * md5sum 64137751ee0a9f9bcf04fa923a5a1041 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) iQEcBAABAgAGBQJSc3JFAAoJEIXCXpWhbrlNcw8H/3bcZcjxX5/etznYJQ51VwYc 0MJ72ClF2xoMOOUdRx8opgX75gI4ZZc2GlLku2Brpn7H1eDwp4dOq9sj959Be2RU PcOy3zgzrWJlWi38qSnyEqTk0PDOHR4SFwYxf+ts9MwAEih7Qr6/LIsotjMbTlA+ qe/D0xnUFV5nbVJ8EaYqB4EeXBc3+bWYBo+sh23YIoOwMhMO9mh/o88cQ4Ffy+C0 i3eHsywjzwd2pZMTGg9zeJhjgP8u+nhrS/ZtE29DPzkfzjX8kU5krtcDFMN3oB/W EkEFwgWZsxCMbwvm2wjMk/lzKajz0MKUk9C3ze0t+yuOnp9x8LK8HQnHjUyvH5I= =SAu6 -----END PGP SIGNATURE-----