-----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-15.3-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-15.3-stretch-amd64.iso c111a8fbf8d08118bbbd7dbac1ef52437e90ac014886c026e01ff4e45c0d360c turnkey-ghost-15.3-stretch-amd64.iso $ sha512sum turnkey-ghost-15.3-stretch-amd64.iso d369f1e569fe4c084847b8c97323bdc23b221421b676936dfd3c62a11ed0d98e648d8f3a1d417026d572de3178579fac5b81d10c34eb92e1f8a841c21db5265a turnkey-ghost-15.3-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-ghost-15.3-stretch-amd64.iso.hash turnkey-ghost-15.3-stretch-amd64.iso: OK $ sha512sum -c turnkey-ghost-15.3-stretch-amd64.iso.hash turnkey-ghost-15.3-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAl0TG/4ACgkQhcJelaFu uU1VOQf/X3knrMNfVk1bBttala9eNOhC/Qp1wjkN/HpShLbPiD9yynMERi9sk6oR FVJ1X2/ENoTZyFcdoJP7OqGKilNS+d0lKzr4O4ERhz1vglEBFODlEIp2YNBEurmd /wItxZ5pc8u6/r0ollIB2w0DRsCwMlcnmtscdLNTOTuT1+MpS6soSBijZNvrSoms ZseKmDRsjTXHZd6oWBdOKkt3uEo9zgaLtobgpvbsRFJRqhL+GUwCmUOkxuy5nEOl 2DejT5X66PzJEyj2xjOFkAiATbtA13Y0/lB8msz6TIqlwHIAY1OWU3tp4K0yEcYO 01+7Q28tfF+3ozpV0M7i9L7bRACP5Q== =WRtx -----END PGP SIGNATURE-----