-----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-mahara-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-mahara-15.0-stretch-amd64.iso a1a82a786ecce57b91768dc33004cc2b5b613dd4461816c7e93ee6de0e467a34 turnkey-mahara-15.0-stretch-amd64.iso $ sha512sum turnkey-mahara-15.0-stretch-amd64.iso 0aaf5e60f6c888be2bc7e9d70e8774865b2c0597d6fb785027666dfe1a7823b8c778443ea421068304796004742f7129acf2d0551546ad31839bfc7267aa2eb6 turnkey-mahara-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mahara-15.0-stretch-amd64.iso.hash turnkey-mahara-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-mahara-15.0-stretch-amd64.iso.hash turnkey-mahara-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAltMlToACgkQhcJelaFu uU3N8wf/byowH6A8RN3jl9fLIXyVW/NlS7ou0+ZgHAu3SHDVgqZUyMAeGGL/L0kN Nxs4mYdLRRJafBYw4grtcHkhlMd+wDo4BTCQPBhJ5+ou/AlWVBZIiKb5aEH3916z t8uHqfscliqHIpz8WzS83iXkitR/RL3AGyYy7//rW6jv8Cv45RwchPrs1ChVbAM2 HaE7vD3SCfNwrbFg2mbcHtLLKt9lXRDC8eNWbU9GvqJp0rTz8P4aWiKW8HqCVTMr Rz91sv6epU0PKkEwx69d9MtnW6HjppLQV9ZCbdUeHtRxp55D6FR/X66FsUGziJo/ /BYF8Uc/1xIcPC82lqva6dSx8Mmf6Q== =QmLV -----END PGP SIGNATURE-----