-----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-14.0-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-14.0-jessie-amd64-xen.tar.bz2 6cbbbdb43ebf1c5cc2d9c75ae4c21087 $ sha1sum turnkey-lighttpd-php-fastcgi-14.0-jessie-amd64-xen.tar.bz2 a6ac017ffa46881dfd9b6f27911872e0a4c1aa08 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiBAAoJEIXCXpWhbrlNsvcH/3moqedAOeAJwq9arCL9DdNd ajmn1xDoOOasyx6R2Qt6xduF65/UD2Ka8W4ggHH5jHKop9soaD+9oIuJ6Iht7687 JFvCbmVx6IE52ilJUt5JweWg2+oIcb4jEg/RroXcRlhsh6P5rnle1mGQ8K+gZJ7M tRcUc6wzzOLoRUjS2cqHSeUHLVR89o1IOUKDhpPT/qJbHMkVW3fNMBfdMfubWYCA nYm0hLA9S9sY4yQUK3FFw2shpDzcdJzaAf9Dlj8rP9pFnIalejJyNYETCKosvbB0 3y5kj+NGo68AbVA2ZQNW9zRsSYZZNGXplyLiUNEoyBUss4hQ+KRQNGA2GlBlIfI= =hm3F -----END PGP SIGNATURE-----