-----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 debian-8-turnkey-etherpad_14.1-1_amd64.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 debian-8-turnkey-etherpad_14.1-1_amd64.tar.gz f33e51a058751d60758db4d6a2f4be17 $ sha1sum debian-8-turnkey-etherpad_14.1-1_amd64.tar.gz 01206a495aaed9ede0cde5bf452d3bf608c8525e -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnqAAoJEIXCXpWhbrlNApUIAMUZb5HKviug7PDOdKNVptjW 70F60EIYFp/TI/BF3yOmUBvP7rYiCTtxlV/qLJAmXC6tc5PfNX/sXvgo/B7b3Ydd hXXt9EVX2g2r+yWiN01itWG1jNWNYekmegnF15Wv3DRRg18R/M0qH/9DgZamxBY4 p1DCrsT6LqXGeoax1TqpWHekedxpQPEF3VeU7YDXN48FhJXXOFpgRMR1hoz0aTEU zc0wNHA6Zr3YFyPcrHl1rD+bFt2urJGjJzkWikuMOeV5lXtqqxElnbUsPr2vlgPG 4aonKUrnAsmY0jJMcnebw1x+YrXOcJtj7LwYgF7dTt6CGdfAFKFU2z/hy1m+gOg= =AJok -----END PGP SIGNATURE-----