-----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-openvpn-14.0-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-openvpn-14.0-jessie-amd64.iso c309faf0c2aa93f1a1108ec00a38b835 $ sha1sum turnkey-openvpn-14.0-jessie-amd64.iso f5630ed4e8ecc2c9ad464fb230d2bb7611818449 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJV7BrpAAoJEIXCXpWhbrlNOOsIAIfNtP1uDkWTIk6DOVf5Ad2r iHY9fmH6ubSKQG3L22F6PsdXztoj4oF24PzC7uRv+nQyGK3dDsiMis3g16yEAGmD AV/Rge8YnBeYqDjcmqwVbtjStSAfhj4xyjD9vznbNjFgApcHgyK853KZ2K1ZJiy8 5M2SJEsDY+5avDdI1D8rspL8S/+batOyC84AZHgxuZOHf8VvviiQHvO4gAkMXBaw CTmcgqgXjGR2MsLUPl7YesYllZdmVGftr53UKfqDrQwa8UkI27htXV1eLyGJRLPh cuf4+M1Wv/uU3h7fDGo42wYmXHCgm/0E/j5iKDpn8gDDfj++Sczc88jhshaG/Mg= =Wx2p -----END PGP SIGNATURE-----