-----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-lamp-15.1-stretch-amd64.iso.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-lamp-15.1-stretch-amd64.iso 910c2aa01cbb11fc7a14982942577c50d1f5066069a96e624e1a6d321e034d90 turnkey-lamp-15.1-stretch-amd64.iso $ sha512sum turnkey-lamp-15.1-stretch-amd64.iso 00f1e1db1626c4a931f31953253587f7af4b8e062cf52aa68de4a5a1a2ed90346dd34807f2f05a05de8a5c4aa285a7932be32d2fbe980fde5f92723727c87be8 turnkey-lamp-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-lamp-15.1-stretch-amd64.iso.hash turnkey-lamp-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-lamp-15.1-stretch-amd64.iso.hash turnkey-lamp-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/piQACgkQhcJelaFu uU22jggAsgjy9zcCI5TnH4O8b/MIpN9ZnEn4R/9fgpE6bFqsGQJ0mC32FCvixR9/ RB9bvmCRcyBQ4gxGwIpNgRBxAMKqGYwSLsYXlAsnQmNJYizQGmqkTFfFfIpQZKb+ SlimvkORZQUXm28i6LBzcS97dVZcTVH8cU18RyVvFGKjYL9k3arrktpDNmbDpOmO kpHQMUkruJPjggrN9kxFffl/Ue2FhHLZvFM1/WSkBc2Hby4IHETgL81AxjChCru7 3Tk7dCDa2aES/QrO339707G4l0PrIsqxhKdfM5s7h20IPr2zWr2rPvG7S1biBmub GdlE31WQ/USeuoy5ItMqvvrteTLGQQ== =zYVw -----END PGP SIGNATURE-----