-----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-elgg-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-elgg-14.1-jessie-i386.iso 311896ba26bc3d4f7b7981e5486e9daa $ sha1sum turnkey-elgg-14.1-jessie-i386.iso ef8f22c8cd67e90ba03055219d764552410e0b28 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPxAAoJEIXCXpWhbrlN2ZsH/iyEnYQBr3p4RfAsytBeL88N FMu01DcfZEduBgFGBhKuAJl6oxrwBc3GMgxM0YJ7HIUE/UeOvzHZG+RD8WgUJLx+ Mo3QikF5rgUOgFDQIKs2dByfYdp5+In8+e7zQG4YsXgGgC3MhZG5cwxKQoRQlhT7 bGAYdIiTUBndBIH44S2jzgCNIv4VZQJopZBWz/tqeuxMyoeErv447ig8wEYyzdgY iAaWc88K9e+3g0q+Dd02p6UQxHH0dnGKLUujmhAuuNejikckB1gcbwKi0n+qCGlp NHwmOxlAL1YycfGVTGAoqrWXIe1BVDJscGReyJLDPkwLnWdT6su8ED2KjGii+Ls= =iofi -----END PGP SIGNATURE-----