-----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-phplist-14.0-jessie-amd64-vmdk.zip.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-phplist-14.0-jessie-amd64-vmdk.zip a46c058ad42351afbcb6866e625ecf3b $ sha1sum turnkey-phplist-14.0-jessie-amd64-vmdk.zip b0a0b3b634910ebb0fc23e62ba88fffecfe41c5d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdYAAoJEIXCXpWhbrlNuCsH/2RHtSfdZSMcLfcB2ekCrlnV G+qavpBbv/y6rgGet8/PFYnn6Q5eef+UFOER84YrAXhotQ/Cka+DuRkM0aMwyGjg o+xnUSTMWRTFkFcfMjwAeFjPRkrQEaPLyDwzLEOwmKgNnKtVoJBvai28qP5YDmIq 3LNqHQs/ZlNmnC5XbRePDu/9pmgaj2EGvkFvqRiLW/hmNuyrLgogdUeJ24Km2BNN W8Q/HkVLH1SLMZwJtIODQrdmh/L2TgI5HUzB66ZbaxJQTGF+ziWYs6EfaXA/qdWP pngyLCAO5bE3SxZ7c1Sj7Dk4FXjCVRtHQIkxadqpsmLKBcdMlsBV2HfnZ7xf+VM= =NLMm -----END PGP SIGNATURE-----