-----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-vanilla-14.1-jessie-amd64.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-vanilla-14.1-jessie-amd64.iso 70da344cc69f6daf0fc668462dd0f839 $ sha1sum turnkey-vanilla-14.1-jessie-amd64.iso 952dc7e5dffa014bf24f381f379b6d448341b601 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkP1AAoJEIXCXpWhbrlNhCoIAJgjQqBhZNydZM1kcvam+4Kw fvqkM4VI84eevP77k7+WwQOoG4IFhKG2MjBOpfudTGXGN5XjZwNZviwaR0SdjYmL 05CgHP4fOwscg56ZQxEkSLqJdizqGrPa9oAjnmRoBx1Yva6KOJX7WkE9EUqxPw7C QKsb0B+sSn8q38W1Jf66XDTFxVqpf9jj/AybbY2RKoTkWULhkI6avNdnGe32mWN1 L50ZzCVgwWuLrEAgwGpF4BXVOoXRos2R1Uxsc4gv3Tg8FXtH2ocYFWRlsqUEPyZI NAjwHs6Vu4zTCcnSqp6hIQuHPeK7Eu3lxNZeyRClkJbopU2mjPXLia+jQUpHSSw= =id0u -----END PGP SIGNATURE-----