-----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 debian-9-turnkey-core_15.0-1_amd64.tar.gz.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 debian-9-turnkey-core_15.0-1_amd64.tar.gz edab10b37d1cac7c34071a82a8bfad8c4ed9e72847eb6d8a8c01ddd1b0440b0e debian-9-turnkey-core_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-core_15.0-1_amd64.tar.gz ec4d1b773070cef2b7ca9f001c7eb6398e4ef2ad179f892d9377cbeb1ca8301e581d90b2273a955727883acdeee31c202b5f2aecdb170dd68e79c8654669bc8d debian-9-turnkey-core_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-core_15.0-1_amd64.tar.gz.hash debian-9-turnkey-core_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-core_15.0-1_amd64.tar.gz.hash debian-9-turnkey-core_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlte11gACgkQhcJelaFu uU30fAf8CYnVe/CXG3DbmELV/NnWRqfb/c800syYR+wpRQ+IS5l0LXt2uYvRizqg 0E8L8o7b8RmBMyTrEXqYTS85/7RxwroJEDcD0rwY7LOosLOkl3oIuKWx7MyJU6tw Z1yTXe+hd1zG+Ungj0zQ4R3A9zZMmWu9XCdZZcv+xAS2F/w7m5pRy+RfNeKshc2K j38lu2IzHLrcc+Azwb8/HrfHqPr0gfOAiD4mhU12/uQWm91MTbuIvvm7pcfCYMGB m7zHcahnFOTDrJWBD5XyfWrQIJFyLEdywYioI7e5iUg1F8tV64Hp5tHFjEkMTZFv M7luXAFrmZDWnBH+5CwoxZxL8QG55w== =Zu16 -----END PGP SIGNATURE-----