-----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-core-15.0-stretch-amd64-xen.tar.bz2.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-core-15.0-stretch-amd64-xen.tar.bz2 ae901a88ab9d1278a428e06860056b56c60d55de2bf67e137aea92d7435fbd05 turnkey-core-15.0-stretch-amd64-xen.tar.bz2 $ sha512sum turnkey-core-15.0-stretch-amd64-xen.tar.bz2 ed46a054dc2533911e4302af8a72e047b7d6274f2b033e7612889b2fc5ec775539f362e588a7a98066715cb4aa9c89863cb557ac1474f41843f720ffac4f8880 turnkey-core-15.0-stretch-amd64-xen.tar.bz2 Note, you can compare hashes automatically:: $ sha256sum -c turnkey-core-15.0-stretch-amd64-xen.tar.bz2.hash turnkey-core-15.0-stretch-amd64-xen.tar.bz2: OK $ sha512sum -c turnkey-core-15.0-stretch-amd64-xen.tar.bz2.hash turnkey-core-15.0-stretch-amd64-xen.tar.bz2: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlte12AACgkQhcJelaFu uU20rwf9G97OAb/o3x8krtvivhLi/u3njAVjWnZda23x1PHj81S2amiZmaEST4nQ 3yV4h/JxnZz6KL/zPNBcIWulOw7dza3YPqHRbS9WHUdfdYEQFuyBf8DC7/bHxWFR dYqFliYmsXswxy+j7L+n63KoPDhhMkYtE6IlTboBshe5Lk40GRzz9GiluefzIN3u PTSoxnurXPG2eVURe3zDsP6VMDakosKU27CCtTlhcfqT2II2hVJLImRC98oH7Ybq Jj60PUHb0zTK7Y+DnGwdGjDz1epPpm+/0i22/1KJZFsD+1eMtvLhv2JqKNldXFM8 d89ZFKjhC2VhSXdKNXlA4/mgH6jnyw== =0eLB -----END PGP SIGNATURE-----