-----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-joomla3-15.3-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-joomla3-15.3-stretch-amd64.iso a915de41b444ce1a33ec97ed8b546355b9e71446b6250ada7079175bfb666ae3 turnkey-joomla3-15.3-stretch-amd64.iso $ sha512sum turnkey-joomla3-15.3-stretch-amd64.iso 1e91556cbe32862f14c564acf51fc8a7413c9e999bafced8041a38d2fa6ab22018a624f0f57ab71c4e15abff61ad6bdf68b2e8ee197041d24a33da90ce34d84a turnkey-joomla3-15.3-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-joomla3-15.3-stretch-amd64.iso.hash turnkey-joomla3-15.3-stretch-amd64.iso: OK $ sha512sum -c turnkey-joomla3-15.3-stretch-amd64.iso.hash turnkey-joomla3-15.3-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlxhNv0ACgkQhcJelaFu uU20WwgAs5fzDZL5WrVfXKf0rwqJ5Z3VIzITmjCFXkRdp1uzujhzzMQF3CIksg34 iq0hj/V2ACmPFjvG06jh8Sr35iS/q8WNmin4PlDqMx/7Q01aOFlLCO1uKtRc6g+Y rkYJz0FDa/LY4wexyqnX7Baexe11bNkyUSz2g5en/0Hp9QIXgvxdB8OjWN34Tx7A t1HbiVAnk3JZ/EBD6C3LDw/tI3IUL4e/Zrqn6/sP0WFDTQvaq0gF6KsoJA0L0rut cuWu/fCUmVNcjPd8hKaNOA0hwTZSElcsVlApLuOGYVuB1rS3JLgWLo/hYbTQfUB0 15bGAb/+Pi1OikLC2z0ooeRuH6OBMA== =LsK8 -----END PGP SIGNATURE-----