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-processmaker-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:05:44 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum eeff6456071916bd16b23267abe0c4be9bb8e827 * md5sum f763663cc6606ac95d8945b8c7377a44 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) iQEcBAABAgAGBQJSXmTuAAoJEIXCXpWhbrlNR2QH/0Aw3kUhr8myruebi4SgVniI MdKavq1iBEFR3GeGwIzZmXV03sil0c7cRulZ7rrdH1omMPA+m0vB0qYjGMB5M2DJ 46WubW2tw7DJ9NhvrlI39Zc28ExJNNU8nQBbUEt42c9MMrjb1wWIunTAWcMrjpNh FraIz0FYZGrYoodLJK0qfZcQ7wpEKjMBZDyIM908eOCmYDd2TK2/5oLjqKpx6+43 D3w9cOExfXI1iBCHyaD2Ic/ZHFzOhs+Q86E93qYFyE0n4xiCROwqdDkSagGzltWH dtKCMes65yu2MbfPxViEOXnnbkUsGyyZlsLLoLOfd2Rw3DHMwDZpbVpElNMzVJw= =U+dz -----END PGP SIGNATURE-----