-----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-drupal8_14.0-1_amd64.tar.gz.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-drupal8_14.0-1_amd64.tar.gz 9be50a2fa7be2a560f21ce490298e95d $ sha1sum debian-8-turnkey-drupal8_14.0-1_amd64.tar.gz 7c0b89b47d183361e0be45b5bd680e72a8ff2062 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxSAAoJEIXCXpWhbrlN+nsIAKSeuwze276p8tUJTiyuDwLx FfQBWtM+wpQfS7WhFQRLfco0mReGTz9k22i9DI39Ahvh3OZib3YBq/eG48criKkO lVadLZ6+6UtXCL6mPJT52dG7KmeljzndKm2YAlP+oIutaXij7flnORhEOFQiygN6 g0mOGuTGXZItFlZgOQwk30bd6tFsO2PK9IxnPChSILUnsfKmBGZlm32Gr+NCztuW rShiCjxrW3CADwRNcqCLJ9LNO0CLTxoOTGWVD1ENSQl7uRd6uB4PTOJe//Vr4M8i Yih5zRPg2z33MEJhpXoKCFjpz+Ay/DlfiEE5Ktobv44wEOQ7hxTD1FY/8m1b/0w= =1o6r -----END PGP SIGNATURE-----