-----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-ghost-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-ghost-15.1-stretch-amd64.iso 1f14b9bd546490e197d91adc762c852d2c3f1420be7fb6cd212da2509c341627 turnkey-ghost-15.1-stretch-amd64.iso $ sha512sum turnkey-ghost-15.1-stretch-amd64.iso c882bf89bd3953f9f8bb191064f062bce47f29bdf97860996e3c36489778b4efb76271ddb7d34002d8d4c358346a83397bb3b6a9ea9cf5dbc8ab045c44ed5d94 turnkey-ghost-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-ghost-15.1-stretch-amd64.iso.hash turnkey-ghost-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-ghost-15.1-stretch-amd64.iso.hash turnkey-ghost-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITPIACgkQhcJelaFu uU0dmQgAwZmjUI8amZAPeLaxgbkjcwXhEZFQEVXJMdKi8FXvf+PwteEdBfVHzp8V EemgqK2v7OQdeuJjJ2PlOQxGv8KLY5Bwsx5y6KdI4+5PPRV8LzV2hdM3UIL8rjpZ CP3grLV1arIA/rGBXLiHghQctJkSRzN7MpMhfHSL5RhFJytLQAt2JKjrUTlmh6uK Dp5uAIe8EhzeN2BSQZ88mj0ULdB62RUQvl0gUQn6A7z0b1KekqSxfwfgWdwd/uO9 ija8eL7z5fJh4Vai/8R5K69cu97phBvFYmIwzU0bPIlubOO7i5Cqyho/SrGfeE2M npXMagoTzBStrKvyZybMs1P+b2GwBw== =u6po -----END PGP SIGNATURE-----