-----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-roundup-14.1-jessie-amd64.iso.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-roundup-14.1-jessie-amd64.iso 4f91c1a69731866dd52e5ff6e0b68106 $ sha1sum turnkey-roundup-14.1-jessie-amd64.iso 597a88aca77daea2488b3c4a98403715e503bead -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkP0AAoJEIXCXpWhbrlNyCQH/3JVlczGTvlBWsXQZyIFfxMy kFzoIbJWvgsoMXgxVK+uGOlqwRgwmRPun0mwFgHPDNj49A4LKqLOId43P93+tIaG sQKp6LK6+g9CU+QDawgt4RYUi95QwrdiJQn6e2EWSQzyq1ufPkVBlnIGoL6lj2vM 90NDmcfZeb/uioEZPXbA0lNV99IPZh1/PXN++2PKfmDJosw18MvPPhbOvewbuFKy 1BUC64ji63Vh8Pdr9fHb8CMz1Wcy5Du7Z+gpN6en0XZFxXewKv2D7TZ5a7vc7B4E 0g4KESrzht0Csb9QhajY+0OfM13MdX6N/MMKU+ExXdlOxfBs2QJW+WIYKLsXa2E= =8vN8 -----END PGP SIGNATURE-----