-----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-vanilla_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-vanilla_15.0-1_amd64.tar.gz 8c67224d999c4b524bbacab28619e7bcbe6e6a7149575d8c6df4f74bc74823ad debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz 5a3a94c8be005d45c6db2bc1f3281befc691137e4c93b9810003afe4f67e5fa1660d2e7606be5c95c5af25a56f3b6867f854a75c652c1bda94246f960c0db90a debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz.hash debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz.hash debian-9-turnkey-vanilla_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITOsACgkQhcJelaFu uU17WQf/YEsetSuW3pGIJcqxROGpHChjnFq7sfu0QUL/CS1LmdS+Fsk9jbyYLyYn SIIELA7YhujldPCU5uTpA2/TgFTapxZWmdmS10XIu6elqLQ8gKWL1H7OETCDLWb0 gGoHDYfDcPZVl9BMcUbNbFG+LEh/sMjlGD4MrrbKwSjH16PDGV06EIWoUw7RA6e8 zI2mMO3puyzx/gTgLhYtBhzFbARmuz1njOf+dLQaEuF7HLGVpVOVWCELTBLHEvVK 3wLkfXxn0nEkForcopfm3hGe8KMNywegtitPlH4uRi/uGoHKo0cmymjGdvtm7Kq5 ks6zW32g7jk+0HOb58oKVmlAPpOgHQ== =rBQi -----END PGP SIGNATURE-----