-----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-tkldev-14.0-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-tkldev-14.0-jessie-amd64-openstack.tar.gz d049c944c04e0d4182f7e6c43e2f2236 $ sha1sum turnkey-tkldev-14.0-jessie-amd64-openstack.tar.gz 0191e8c83155924e04d45e1334b0320f9cae75d7 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG/AAoJEIXCXpWhbrlN+d8IAI+bds81kpX6Kda7gWLc3XSn ICHqsHt6q7D991/qSaiOQXG43vBz/0YlqITRq2UwPjRytcKU5f/aqn0qBscSO7SP 6+r7AbKrv+A38FRrkOwucbARcBUYfSEQ2v9Hatc7/D+Gia+cM5seJFvwvS5nf0WJ xqb7accMg/eVf9pI/0gRK6ypumAkxz3qfsa097Op41j/sHh7cQsUmOV5GSkIv1K7 Q+yMRHZQW9xiWHMCDTLEjx1u2TGDUI4xrc3L8U+gAr3YBSHXmvuYgYwn6xO2fQoB cGpnVQkqfkZZ5LacXTDAOpMKaAJcFJ9yeKxKaL02ABb6e5QtF44eHTlAdfnkDCA= =ze6q -----END PGP SIGNATURE-----