-----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-roundup_15.2-1_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-roundup_15.2-1_amd64.tar.gz 60d8360e225547bf9dfe8e23dd2df27a12a428c9047e431bde3499832948f9c5 debian-9-turnkey-roundup_15.2-1_amd64.tar.gz $ sha512sum debian-9-turnkey-roundup_15.2-1_amd64.tar.gz 21875048def57431271fee4dab7a54b774b0ef55c3ebef8414bc9b6af5e8adab975978953a08e08004b7f34490e8e124895e2fafee7543921bff0773532f0bd7 debian-9-turnkey-roundup_15.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-roundup_15.2-1_amd64.tar.gz.hash debian-9-turnkey-roundup_15.2-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-roundup_15.2-1_amd64.tar.gz.hash debian-9-turnkey-roundup_15.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlxhNvoACgkQhcJelaFu uU1jJQgAtZOAH7FKgiMwyZeVemZD76Vyl4BxT8JdocJbBvgeED4w4Is165Kb4+/R 3Kup39V+ijPrrQo32t9aJotYzbmLzsdvlREaJiLnes1yTlelkf16wy59r1BMAzPr GeBmRc9FuT2avKa+KcTGLmywgEUj9+m14mq4ZUb+fT1Z1rI+mAkW4K+8xG84KVnB IsPPc0OLI9lNgoHG1pRhjXOnOJoxjkSvGu+2QfrOWAZoFu2VFV73Rjkbep8RkCxK xlPdqrY6KvM4YaFFEcXWsdXFB9Ga4wqgHPfOhjrv++aHFfwd+VVaShNHaKX1OBBJ 49j3JQtJUxLzeSjX98V7KTj1aqo3WA== =rRBV -----END PGP SIGNATURE-----