-----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-ezplatform-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-ezplatform-15.0-stretch-amd64.iso 5af97376edb9c96d4fd41349e4ffe67c8f6fcdd9ce500854c320b8654a84b4e8 turnkey-ezplatform-15.0-stretch-amd64.iso $ sha512sum turnkey-ezplatform-15.0-stretch-amd64.iso b2cb8653199a19d37895c16458c8e324864411cd13b8e7b08c1860fdf20602f9c930871addb2bb89473d841e1753b444b5259992b5d9d9a057f1d2b0d563be01 turnkey-ezplatform-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-ezplatform-15.0-stretch-amd64.iso.hash turnkey-ezplatform-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-ezplatform-15.0-stretch-amd64.iso.hash turnkey-ezplatform-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluD9TkACgkQhcJelaFu uU3TIgf/bW0K95HkNri9P3BW5LQvyTutD6TXSaBwXcQROfwFoyQPygshfU6miVr5 JjRVPVcBaAT4fhsljzVyx1pe9wVfC4FMysTH6qcEEosCJBDgCkN841LOSRroG/r+ HQsHm9xqniYA5FF97Fru23s36BRnnCD1EcknYQOqzrqK6KAuOi1Gm+LTESETOm80 A9TnFZeMiEW65SapEEBZUeEDrNwcfRLcxXuUqD+KP4/NrGHT2h7lVrney8oKB9ca dvFtyhYcxAwEKBRh+IL1law+2vEzIvxmqNlqwJLRN3Q3PRzI9tu35D+Oq5Ch54oP GWjGw8KPMdsK7gXTb1Rq2YObttdCJA== =/p+a -----END PGP SIGNATURE-----