-----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-silverstripe_15.1-1_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-silverstripe_15.1-1_amd64.tar.gz 353a3e474f54d8496417553d8e7ace8d6e4989996fa44961d15a97cc5d2fe77d debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz aac375316c1f7aeea78a8fb798b7aa2fb6167587a08e293f0d8ee099ee127d2cb359cea0330e71792fe2fd604a65925f6b3b7217dd0e40a1e63fe170f8ac3129 debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz.hash debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz.hash debian-9-turnkey-silverstripe_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phMACgkQhcJelaFu uU2JlwgAp2M66fAD+xTC232BleApHJKphU5KZFcxi6X87Hoq33GO8PqYMjKXfQ06 lOM4knT+C7slK9vRVuCEiOgVYxtQyBUmp3auaJA+KoQnYuobutR4BdGnFzybr9xL RsWUwL7jLqrCHk+oVOnzFmy3RQaEo82ohOw6gARi3U0CWXV7HN3LvoLTim6oRsCu +7A7emLzJ6xtjMFqq5rWxZk3XONMml/qMMUA2VLY2it/FBDxc0kdoyn3XhwRrwkR lT1/FfAV+PjeKtmB43wwo1hbDIiJL5EXMxWovUNHMTXVwWr0xx5HcyWRRmB1G5O0 243x+v6sIzclvhnuTzZidkaPJjHsXA== =591Z -----END PGP SIGNATURE-----