-----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-14.0-jessie-amd64-xen.tar.bz2.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-14.0-jessie-amd64-xen.tar.bz2 fcc1745799842a6477d2782cfb049d7c $ sha1sum turnkey-twiki-14.0-jessie-amd64-xen.tar.bz2 0694845625e0251111097c17a67bb2369af8dd09 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiDAAoJEIXCXpWhbrlNnu0H/idJrD5WiVe+WuG07dqhd+YI D0ZM7f0gIJZlDIk3tp6NVyuEh5esQw7jYRIsJ20GEQasJvqPSVI9m8/K+R+fUtE2 RIRODsik4xAEyj0mOhYbhk+vjTW6yiNcpc6TIsKKuk0y4XQjGZ1Pa+g1jUFOR3cy BNakHDoZKkjpigSzBNewREQWQGA9rnw8OyIU9vxptpJ3KOuzmI6WydQ/AQdP+6Rp 89bazRbgJNMYMoJFnmL2JfLQVSbv+9ae4yX23uJdeetqFo53XfjApFK1UsxcYxFL vUhM6JEknjWGiebPI5bX3FoKaQWTmEcscGZt4cVF/tvgcCdMk6Gskftb4F+aKKw= =QCfA -----END PGP SIGNATURE-----