-----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-sitracker-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-sitracker-15.1-stretch-amd64.iso 678cde80cc005339951fc0e297546444e91d3db2f8dd41e388303259e8833bcb turnkey-sitracker-15.1-stretch-amd64.iso $ sha512sum turnkey-sitracker-15.1-stretch-amd64.iso 6a4c48794872c01f3f0e7888ed57d6b2cddb3c1a684057b20364ced0db53a648fffc3f3e02b7d471964484cc85a37f6ea1fb9c4318e5f846e8b142c1913e9b1e turnkey-sitracker-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-sitracker-15.1-stretch-amd64.iso.hash turnkey-sitracker-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-sitracker-15.1-stretch-amd64.iso.hash turnkey-sitracker-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pjgACgkQhcJelaFu uU3rqwgA024pp36f4XoBf+AZqqAkE8qTdPXK9V9/oS0KXNLVWnlV4yR5iJ8HN6/t uYyY/+Ekanjpjvw5k7aKNajY5lfxVQ5+idrwSMAjUHHUf7loZI4bckeRjoFQEriQ u4cpD1xiWNQvwBPJdy5dGbUlJNyvuH4NL3NbY0ygamFXoOdlfZB2gwY+iZ9jRsqu Da3tJWAYinwUvN373HVYWil3hvPaXVco3EL4aTGZHrBuWE1rIpyM4/X1c5mynbTR Yxz5hM+FoJMgKpZ4/qvlgXWwIfrzM3bYCKXB/SpAqGxaByK5e2UCSicky5B/uKpl IsGC3xWEkKkYC4WIZvwSMJuBE0vsiA== =bwia -----END PGP SIGNATURE-----