-----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-owncloud-14.1-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-owncloud-14.1-jessie-amd64-xen.tar.bz2 c3680f5a62b8a8c3ab56b6f4e2eceaf9 $ sha1sum turnkey-owncloud-14.1-jessie-amd64-xen.tar.bz2 71a81ec2a43464273ea4a99f386219ee1e3cf411 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn3AAoJEIXCXpWhbrlN0oEIAJVHkq/6NJAhEbI9z6IUFYQy QgV0m35bJAW6F/r1ZBw862/S2m1qJ6Q4465HlybUNyKPuNjleUzOPu+gvIfALq3c hwK06uVTmLgXtnSH1JfJtgULyy337CNzCswFKFos4ff2rrTHjkSRQH2L0ILRbBSb GTZ9g3KReQiyJBTmeXTlHV+Ju3f8A+f03pjZ0UfSdFiV1zMZrhSx6LAPbz3Y1afL 6dsHaQk8oDLVbC6YAydszpkXeWwOKudh/po++eno4+MyYsSQGqGXUeJBmIYG9xpC OcJjoTunDDGM8XobaAWs2yDmYcFjIKqXO34y0aP3UhByCqPb8UCdIY9U83gEceE= =oDJI -----END PGP SIGNATURE-----