-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 To ensure the image has not been corrupted in transmit or tampered with, perform the following two steps to cryptographically verify image integrity: 1. Verify the authenticity of this file by checking that it is signed with our GPG release key: $ curl https://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import $ gpg --list-keys --with-fingerprint release@turnkeylinux.com pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] Key fingerprint = 694C FF26 795A 29BA E07B 4EB5 85C2 5E95 A16E B94D uid Turnkey Linux Release Key $ gpg --verify turnkey-syncthing-15.0-stretch-amd64.iso.hash gpg: Signature made using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key " For extra credit you can validate the key's authenticity at: https://keybase.io/turnkeylinux 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-syncthing-15.0-stretch-amd64.iso ca47bdc55498d1132d1984fa27746a0dc9cb756b8a4783082dea7f56f63c7336 turnkey-syncthing-15.0-stretch-amd64.iso $ sha512sum turnkey-syncthing-15.0-stretch-amd64.iso f97facac5cac29d7187bb5516b17dee48a3bdc22cbd363361ccd68312b323a270e25184bc37d3e78a5ed620c9fe631023e76e257cdaeb854cd1d68612c960a15 turnkey-syncthing-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-syncthing-15.0-stretch-amd64.iso.hash turnkey-syncthing-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-syncthing-15.0-stretch-amd64.iso.hash turnkey-syncthing-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluD9TwACgkQhcJelaFu uU3FBAgAtZ+ADyrpx+F+l6Dc/hZPBeuUM6CeT62LynO87iVg4dUT22vmzTIHz5Dd VSblBtCJbPkQmhFZKwSg7I3s0YiObXAsDe0AB2MG7zdyWRp8Ag3Bi4dDEcghEClK SOF2itDLuYR+AC+q8yFnpBTtTNUEpIYI12gvqqAHZ8EOXqo2X3EFJGx7e0Fe01jN HiSjq1YUo9otFDCD3Q30aHfuBzdf4DGe4bTJo+oYR6Ca+Ztd6H+WhBDw9F7DoUFw 0kD3VedmmfbB3cELhId/nrifMz3tL1V2TwSrER5g+0NJdMQ7zEE7KtcAYRDK2qBP 3KpKNkcBqJuZ73og0dbOSrcLWVVq0Q== =fPei -----END PGP SIGNATURE-----