-----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-xoops-14.2-jessie-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-xoops-14.2-jessie-amd64.iso cf537ecb2c432f6ab8a7c50d7f81bacaf4a29faf7d8b74646ebed1d9ed1169ed turnkey-xoops-14.2-jessie-amd64.iso $ sha512sum turnkey-xoops-14.2-jessie-amd64.iso 11bf0f65625dfbf9c5c81b561e69b9fbea37510ad8c6b9ae6c0bd2e34800a8894475d819a33397742b3a032c1e881488f95fdc5bea86c4f44f1ee86c62635d81 turnkey-xoops-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-xoops-14.2-jessie-amd64.iso.hash turnkey-xoops-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-xoops-14.2-jessie-amd64.iso.hash turnkey-xoops-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZIVn5AAoJEIXCXpWhbrlNa5kIAJqYHWAG5rMpny1XxFJfSGIG 5Vo9g2HJ4k75t09ASEWkodn+EkQze95bwLqJmAs3HNPazjBSr1YEkdQpkIulsEAz bOlBoHrSOkFkv1r1735SYLEB+YLwtVVHme1bSHyJCR9ckH1bNmZUh3UviCb282ml acQOeYCUxytkq3C9P5ofEyNmr04Kw0ZvoznEZ4K9Od0d/voO31ZzD0M+qAbPthYV uKUQl3yI5vmcxnFJCryNfT/C3/+1iR8NLFZ79O2bIB3QduGkYFuwqpxzh6Li8J3q +eoQWLjDZgZbbQFsuquExOL1yLpyceSnR0T6CNxN+/X96aZDGYM/uyEEUaXiW6w= =ZL4c -----END PGP SIGNATURE-----