-----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-gallery-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-gallery-14.0-jessie-amd64.iso 2aa2f0d5d4de6f70ab38f95df0b03813 $ sha1sum turnkey-gallery-14.0-jessie-amd64.iso 1c635d028ff6bcc96df8269fdc38f3716932f18c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJV7BroAAoJEIXCXpWhbrlNGvYIAKSJj3LXXj064b52FPNzKXlS 7donzUtWJt1H40/TJ4nHZSo6yeO2vhF7AE4Q2K+P44Q5L4XAmVuy2G7lZZmZYcxd udDkRvEr7Mw2MNK97BRU8FTqIWNtlq/6kMV73vMPL2Nhlyaxkc1v0ERh7qTP4N5E sinVhnFLxUhd91hXIBnOPZHi6GjAkie/z/7UFgIOFMtTqYT9V8BaSS9PLfKlRAZB YH7ZP7Hq2ld+ECs78S/3T6LCeMKG8jksVP9GafS84PudSwoHdODbmqNhUIhs28D6 kDoHK43lNoeOwws1lOSqIWHSG4HeEM6/R/JH/mIRh2NiWH5HWQVzqLvl69NfrNg= =k+rk -----END PGP SIGNATURE-----