-----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-i386.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-lighttpd-php-fastcgi-14.1-jessie-i386.iso a9810bac52d254fa8d10ce786f0b9801 $ sha1sum turnkey-lighttpd-php-fastcgi-14.1-jessie-i386.iso ac4c4e37de4ccf3551651dfcb91b60d40ecd1099 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPyAAoJEIXCXpWhbrlNxngH/22oQZnL41rZpmYzykYxu3vB LZbFxPSyQD6Jc5eTeWEY6/v/ZTdhHP8XXukcFnPVz/7+mWaH7yGV0HcgbnQmWVPP lOhalyRzKI58dBFWlgsfRlMjJaZLO9MDxJKDYg9H77pEuA+7YjDcAiqx7WhI8RXA aDImAQTOlPLylBk3GMa0E4FrpYC3sy23pyjYvx7VuNrLGd3VAeLre5Lui7DgwiXr f9fJSyBUUV8owR0+g/AJDSAo+JI/xaOcMJR5gHN8R3DsXhAvTJq7pIRFZc38UKGr q8rhhl4YqAlKeZzQzK5gBTxuvna2uoC1kEeezLfMOcGzdEz3Wc9QCa4gvVRpK68= =Chww -----END PGP SIGNATURE-----