-----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-icescrum-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-icescrum-14.0-jessie-amd64-xen.tar.bz2 b446d66eaa530a5103ecf45d76ae4c32 $ sha1sum turnkey-icescrum-14.0-jessie-amd64-xen.tar.bz2 2572598e5c373c83d4a2312e8f1ca7032e68fe57 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiBAAoJEIXCXpWhbrlNk8wH/RMlAiVmkXloX7VhhaY+0cK/ i1/Vvui8/5XyiSd3rEZy0nYNkEeeVe3KysFBPt7kzK436JrT9ai0cG0IeA2EsMpF 1Bwa5G0808Pz2jJyDGjZ+oARu6UzyCZwvXxW4P3z+HTxo8RrtyMXZ9OxOlREuZn3 kMabewtGeP2Yv+K96mCizoTklp3ESycPof8O4/ou+r+lMjubEiByn26TGi8acYSt s+leMmBD+VKuKUDT9cW+HSJJ9Sy8v90rhoPOevr4/MktuWl0lhKnAqgn460+5HTb HOHlW+UmFIGwS+VrYUg/cNDoEFBeB/5IGW0fxnTbwamwAsLynVf0TSkDbOJ5V/A= =+uko -----END PGP SIGNATURE-----