-----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-redmine-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-redmine-14.0-jessie-amd64-openstack.tar.gz 29ff36fce7147faecd00b71ce3e68421 $ sha1sum turnkey-redmine-14.0-jessie-amd64-openstack.tar.gz de5d1bad46d30b36b68e80a33dc964de2557b399 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG/AAoJEIXCXpWhbrlNphIIAKfnbbPhy8l8IJNKtJlFIu2V LDweIZkfEZMtLbY/CQ4lE00Rq5A7b7HVlHs7E2k4qr7JmBs7w1CHxktZTFwVz/Gg x9COYFG2GumM7isxYpP6Q80pggGESxq7pNtKdXF6ExmFsMz6lBvxXOfbUWvyXItL a4PKT5C2smwg+XSj/dSgP2E/DizDA3uOOlDG/HRIP7qVZnaVSM7Xooj1YQjXNWq1 IFXfrS8aElPp0GY9hFLTvYHr2Vz9+3OPb48VEhLY+E2tvqyTh4P+WGLy67htYvaN Z5TtJAMg4FET0hxJJsHX3/wwIFqpODjm/bomfV5BmbFKZjinLbpkT3fnjM3SFWE= =g4QZ -----END PGP SIGNATURE-----