-----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-mysql-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-mysql-14.1-jessie-amd64-openstack.tar.gz c83cd7a6846809be9484eb764e3ec764 $ sha1sum turnkey-mysql-14.1-jessie-amd64-openstack.tar.gz 06aa5520cd1a1b1e9d9d50ae1efc393468a852a5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn2AAoJEIXCXpWhbrlNwtAIAIypKXP0JIvnr+bMWHIDxc/l hZy3Sw3NMp7CWjpmYBN4vfh12QJf8wlvTCjVaZIoYDxUHlj7tD1mZvgM58+XTktF b08wvjRivFS4dqJMdc2Cs3bOxheLyQ+N/h5mpHRQQIfYIDpwHe1Dym0YdHn62lry QxVV8U/3pYeetKRL9I9CfXfoT5P/CnosxAPdRk4mZpKGtGhuLnKdzLmJUg8ejhKA g9eLwDv3ocFStfTZIv7ZKOSx4SCeirhkA0xSLfzUpSnvshPLVg3LqqnEZ8Fi2TrA Vjf4wV0yvZTzeE2+/dTn8MS3gMKLTV5Dr7WbFhOZWkLQTPnaQJDs1XidSSftDkA= =aJO6 -----END PGP SIGNATURE-----