-----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-canvas-15.0-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-canvas-15.0-stretch-amd64.iso 60879651da7e8c158abd99f2ebc41cf9ed0304e775ec5001011ebe0988771a3f turnkey-canvas-15.0-stretch-amd64.iso $ sha512sum turnkey-canvas-15.0-stretch-amd64.iso a7d39a92c62c19f0cfdbbbaa4a74e034057b4d4cb150bc960924780431bd2cbb05841c15493f09fd44152f47f82f652d6776538d8e4850fe21a2728b5e003c5f turnkey-canvas-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-canvas-15.0-stretch-amd64.iso.hash turnkey-canvas-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-canvas-15.0-stretch-amd64.iso.hash turnkey-canvas-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITO0ACgkQhcJelaFu uU1uwAgAkicu4jpssmQf783mPYWJmvPwfU963PeHRHfQm3RyoFyJ97jIuYU3bkOt UbeTQVbgscev7Eezr2BtAW76bisl24EIecT4qVzh/m8+V/zEs6oOBv0hzfmuT2+s rdeiqXhJhPxN8CAZEomJKIaMJpANNQLcffde/CsRlB4f/VLGYY3VvQRf8iomOY1U W9MmQKQYEJbafgItgOo97Q8uoAR5F0XRqtwrpaad5phIvLFQHX1jeJgVCCqNGLue 1RcFKncyy0jhDGS0ggfZoGxrY1MPQB4mQwkOtJ7kNuK39dv9JdHhFpXwstYc5sVg iyHMuzZbzefwcyT8qMhAyT0V8kK6FQ== =280E -----END PGP SIGNATURE-----