-----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-twiki-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-twiki-14.1-jessie-amd64-openstack.tar.gz beb63679432dbe2e0f71e42038960d34 $ sha1sum turnkey-twiki-14.1-jessie-amd64-openstack.tar.gz 55d4fba8dc261ced921e6f72c92cf97ef15455d9 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn7AAoJEIXCXpWhbrlNcowH/RqiyGmFU2jLcahTz+R+Pg3b /cZOu7DQSrSopzclCO2MjVxRGtf1KgxXu8l2dSySdYbcd2AMi1v89uqfwk5bTKZR DdsEgH3dX5HI4JRHLSyAvVm9wXK9FEvLzA3p4kyEEzM8ql8kJe1NMDVsH6ETg5W2 TcQ+LD9T6XXVVxAlQ50nudVabr4X974PFs18niRbv1NY2zSjPy6Dq+dMrOe5WvzQ iEcgLvBhG4iOzo+2zNvZqMq9/56VQyiXcwbSXKG55Y1rTAy6nyp8E82BjbR5dlrf sUXjkF0zARuUOOiqg1susaV6uzrjMGaJR1fEwwf7CfRI8fFJtxSqgL83uSkMNDM= =FJEj -----END PGP SIGNATURE-----