-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --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-mediawiki-14.1-jessie-amd64-openstack.tar.gz.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-mediawiki-14.1-jessie-amd64-openstack.tar.gz 6eae6b2fb2cfc1847e44ecfd7a0d3ed0 $ sha1sum turnkey-mediawiki-14.1-jessie-amd64-openstack.tar.gz 72a56b3a496b6f00f8068470eb3f592523627a06 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlNl/IH+wV+oKeC619UQkhuY4WSpyyY ZxNUbOcJF92VgjX15Qa2gOAY12YYzdYZwzfn2h6342ZTqKTzzdnt/Cmsp102cYTY YuoY80rsyK3kPUdk7zo5U/qkyfd8zBfqz/LZ45qVfLkeSNzj8RZo6yAW/mG+9O4B z88GY7aOV//RQ3kepcQ0DS2UTKxkVnIys1FuTMENdDPD7Pmfz0y/57Z7r79iGjAs DXOomiH6K6+W2mt1OX1taJ6WKfNTwIiAm6WJ60sbR6EkePibNKN/Q1NpsORu6Oym AMDm+qPUNVwjKW9rcTP42au6A+7bc80fMO5ps858bl/Y+wgMk26HHqt3bZN+HrE= =gjdh -----END PGP SIGNATURE-----