-----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-tkldev_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-tkldev_15.0-1_amd64.tar.gz 6a550960f680187ca37b4f9199e8f3b78ea881f91a575578257671982dd96f6a debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz 9cc8e244d893a14840c21c8f2699b6d7fc411c211c051cc58d5225d9541d2c2f8ab684de8fecb6f01060b70d5bfd8362efeeed7fd6093890b7cfd78d8e6dfc35 debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz.hash debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz.hash debian-9-turnkey-tkldev_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlte110ACgkQhcJelaFu uU2P8wgAvzfjXyTYt1/wJUbYPRtNOPAzVbH8g8/g8zt6RbPWheShufYA7IPsg/8g Da8GW4QctYCwnzPWuSBdbNzbGhv1OIbczfeFRjKeIXKqB37LKDLU4SycEfclrmfW hdsLJ6O5m1AVUmw5942AOLahb8tOEBqMCt7Id/BpHt3zwDVzFbkG848HKZ3R4nZ1 2unhhL8LfMZP551wCoF43Q1h55EkuhnmM30FdOyoTYwrCVPtH4vPoE28hnx/2eFX ih5jG4n/ASKQ9YwNGSy3FYZOX4hqsMMH21DIq8e/7j76S9PoUS5KEUTzy+3XY8JZ YEVzuNlBlRTTrtVWn0MI60RmDaTimg== =8Wbq -----END PGP SIGNATURE-----