-----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-lighttpd-php-fastcgi-14.1-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-lighttpd-php-fastcgi-14.1-jessie-amd64-xen.tar.bz2 5fc437ea654c7a818e02cd46a2399c0e $ sha1sum turnkey-lighttpd-php-fastcgi-14.1-jessie-amd64-xen.tar.bz2 ab8105b46c9d8e0cbf682910f7d639947d4d492c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn0AAoJEIXCXpWhbrlN1BUH/1qEAA+LuERpBYS9PF92s8eM s5jVgvbQmF6l9SCXJ+HiIANFyVjdU5dlJloY7kQ274Fryhjekp+qft+FFRK6x+wD /PGunmTUyWKVwSIVKGw8KawBwWC0lFRKAjJLixsDwVuLjWUFn6AlteuIe9XqiJ56 Ty8f5BAcGLRzBBCKfbt6BPHDEY3NTeSYkz2RIvB2j5xqzZHdtSlaAlXOmbktVJcY aOGZRVXiOtvcOOMnEfBnUQ9opW8Pti/XiT3oxqWGUSg8YNfLO92MipKohGzLCfvw xhF2Ykm7+/R+DBQKai5KR1XwVIIq8Il3gfiPq0X0R1lSRuPufdTcFTmq63GugVw= =N5PA -----END PGP SIGNATURE-----