-----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-phreebooks_14.1-1_amd64.ova.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-phreebooks_14.1-1_amd64.ova 236265d82f0700f0ac44a45d4a0ce1dd $ sha1sum debian-8-turnkey-phreebooks_14.1-1_amd64.ova 4c6e1db8d296b8efbe69eef408bb8fb4d12d02ef -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJntAAoJEIXCXpWhbrlNX/IIANbHVM3OlCXqoTV0/EPBkI0h xYA6WVdCC6HMZYPLlbwI4rcGzDhJNQv38tI7/A8nE3j7rInbD6EqLwutIQ5c6imE /GJJE9KFzjQh7KbWgdJcnwdNoIYyDtrbpNctl1dBFOqfqLxpp3umL7ndZL4HC+jW qMx0Sz17LlZsrxVv42LWH9xrA2ldM+dyuvZrGEgBV1Jp6NCYC/cbBABd7pCri0xv ILG87zSIwCQFPsF9Vy1VAB8VrUNTodhd8rM5PEjWowAt2KrxPL5SsMM+2ykn4f7i SzoDpgSPY8eYdIzsUpKe4rzNLWcfyr3M9ljui55Bkvi6D97An+N+EEphZmcQmRo= =haD4 -----END PGP SIGNATURE-----