-----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-drupal8-14.0-jessie-amd64-xen.tar.bz2.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-drupal8-14.0-jessie-amd64-xen.tar.bz2 d087b1cfe5427a7d18212b5f6aeb6db3 $ sha1sum turnkey-drupal8-14.0-jessie-amd64-xen.tar.bz2 707e3baecb220f4d98eae9511f03b6646eb68ae9 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiAAAoJEIXCXpWhbrlNSrQH/3sKqoIYi3A9hFlo4XG59qHh EHdh03Yxt7wyK76BIiNAGiOELOmc8mM2bflxon4wIa3b7vOCIIyJQqOiI+JauSoR nYomqhBnK2OoJ1Q4dK1ffO8ijERiwTqhIvsvowqWLS5/gcpC/Woa8JSRjm68qDA6 DPSgCacxlS8A4ZoRa2vVwYHeIJIGHiRL9rxPLt8hnRd7Aa7rzYGUt6efup/3xleP NFuezL+KfzgLn/7+LZ0tGUKGhFHTXFZCmGmqqJ4NXPzLwfNNK7DVhoewAGzrWH36 P2DbcnL5qIAnhNPMB3JSTAir/UXPRh4egFOpbC7X5LrWNgf9/zTN/jyfjK5K/yM= =uCIC -----END PGP SIGNATURE-----