-----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-lapp-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-lapp-14.0-jessie-amd64.iso 712efb582003e7d90c0d952bf38ded74 $ sha1sum turnkey-lapp-14.0-jessie-amd64.iso 2ddf8ec3e33e9e6b27017428472d7eb688e7608c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJV7BrpAAoJEIXCXpWhbrlNq6AH/3Cl8cPbSuUMX5Fr+xO2/IQ0 q/iz1bP5Y+MLiNN2Bk+7bZ3mCzmSHSl6tVZMCnCSEejuXWoIw3+e7rELFnSihMUf 142613q4TgO9MF4zulVf8TNGInIjwRNkzY82bpZ43OMu0WKsBuYhW5ryYjOrxD21 mayTFftbxJcsYmSmjhh+nNkxzwme7orPbbwTY2VPDpxaAdGSSdCV+M5agKDYbHvV hBm+HPnIlIp21V2c7guxDPWK1gIydirmUyfs4439xwRJf3WAXvBfV7U+l615xWIJ R/AlqLeq+j+WpNqAyDOaupR9OF/Gxw4JGBiicI5rdggC3/+QpaAZgVLYxdiXHaE= =vKqy -----END PGP SIGNATURE-----