-----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-lighttpd-php-fastcgi_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-lighttpd-php-fastcgi_14.0-1_amd64.tar.gz 48a28462fffb29698c7747f518376959 $ sha1sum debian-8-turnkey-lighttpd-php-fastcgi_14.0-1_amd64.tar.gz 0f05aaec5065993d742c2c78f594a8155f448c23 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxTAAoJEIXCXpWhbrlN90sH/0RN9iwLoF2D979Ei610sUaJ sq2WsUdv1TOR3MgT/MlihoZuOcfIG0awYJRLHIQ75zgLtCVnOhqwjQFsc1+fpvxR mE7GCva4wZYiYpi5OrHoRqUISig43zkVz9cTpLwj8l92fbKSKNnIBIW99njVoONL 5Gz2G+3ynlKYOOG8ZbygorA5c82bZevo5GDCoupwvxSwSqszCBpLqXQ8TOczRAnq 2PMxi8Nmht0bB4ZTO6yR/L03GzNeVsYKv/2wOeS45VIf4Spw6Tm/o5zJMvyiNMbV AsunrSMLFOg6L9/4anPDsV1G31E+E2Enh3gx326xtw2CLD603xWtLoevHfHhgVU= =kRsa -----END PGP SIGNATURE-----