-----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-joomla3-14.1-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-joomla3-14.1-jessie-amd64.iso 06db4095289988e6a7a8d87c29c4d1f6 $ sha1sum turnkey-joomla3-14.1-jessie-amd64.iso 1e9b5970844f8e3a345a77909c8501c4cecf0339 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPyAAoJEIXCXpWhbrlNhK8IALcWEwKr3bn+ayQsT0uqjEkx asmpPbOr/YkQemFKv5xDEWt5yIhytJ20cyyXFAMt0axcrzfxLV/Pfr53dxE3ct61 ByfLzZ9qPmzT2GdeIVOZD4K1sdMXYBmP31qhu8/3f0cJIshdDPOH2b+ZpE1EVSE3 qQR7AvtRE0RrWVGu2qL0PFKFcUyMDM9NCZ2YWnaKN5gRRcrUqG+ix82aKGsQwVZ4 HOELMR3xqOjSs5+u7yrWP88OZZhMXJAPjpwwK9Ui9IN9v61na4enQEFjYAvENhTm KbDUIf0n+jCkDvfQmfaFATnJLAID4y0m04xKmpmAl2WNc0NFq5mqPIMghbQHsXA= =ahSP -----END PGP SIGNATURE-----