-----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-mediaserver-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-mediaserver-15.1-stretch-amd64.iso 576fcbb7b27d3409d8bd3c2a2893d4f460f3cd46096cf6e1669b75adcbc07b98 turnkey-mediaserver-15.1-stretch-amd64.iso $ sha512sum turnkey-mediaserver-15.1-stretch-amd64.iso 0b95a4b033dc4a2eaf26593b19f4e2ca8b8d5dd8d222cd4203dfe89e358e4a99d8e6c32d9754ca02f3ba05eb3aaf50bbbc19966cc5841fd604024b4091b02763 turnkey-mediaserver-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mediaserver-15.1-stretch-amd64.iso.hash turnkey-mediaserver-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-mediaserver-15.1-stretch-amd64.iso.hash turnkey-mediaserver-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlyZ3PwACgkQhcJelaFu uU0eBwgAhJUVhWxpuLgTxccJ0DCHseliVQvMxnxpsC89j3D6f0GFSpLrdquVs/aD Sxk0/VdQ23x+h+y3OfJdH3rJv5tO2p/OEBJ0TYvWkVEqc9JpJtDSBX0E/E//XDXd yleg8Zy5M9Xy8JmWhOauBSttHo0iG+ybW7s/w/Yw4t26CbqNCEoAMytUMMvi1Y3u fyiy5y9aFRIzpPwMzWtF2FoJIYqqB9a3irgyucxD0wHNlUA9keLdymHVnJjA6nQX PWPDo+V9556VdMSyS/3PDPfpW6OtKXwqIcoeXmEfOVu38x96jol9O49O0udLX/od 6CcLW1qD+v8fV4doLYakjHgRmpIHHQ== =KkTx -----END PGP SIGNATURE-----