-----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-zurmo-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-zurmo-14.2-jessie-amd64.iso 584f98bb348a5163f84558f142be1cb004bfacc72ec5e3ddd10ab5361526719c turnkey-zurmo-14.2-jessie-amd64.iso $ sha512sum turnkey-zurmo-14.2-jessie-amd64.iso be00b833652b42842203877cdfce7b750ba627b7d6db017ae33827332b35dfe4c03b620517674166b1271b9e0ec82aa6bea3450cceff434652e24651576ea230 turnkey-zurmo-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-zurmo-14.2-jessie-amd64.iso.hash turnkey-zurmo-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-zurmo-14.2-jessie-amd64.iso.hash turnkey-zurmo-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZAJDqAAoJEIXCXpWhbrlNcPwH/0oI5wO/fUwBmvJHr/amJ28/ bIHsgxFyiA5dmUonsAvkBw+bh1uhtxvPefq9km/YF4GwD2EebBDOB2L/2/rVjW+E CemJjBeVXl/ijiBQNu/alAne8K92GLzoSQ1OgauXWaCNbvjZrAA7KOc+6MbCN9jC /fwRQqTwb06s44lqQGY/Ptpmb/Jtbd8SL/FDOQkirMMH1TN8ezNJiPjUR0YcYliP Rs9YQXmZnFAFzxpGduTUogo2xG0QjRplVBw4OofteoNYY0xmG+jRww8mrcVikSQN XkX73L7XUCXEbRwMrX1sTYI0WZRbvXRtWCkjMGcr+SYb0PP049qpwluzzhXTz7k= =wAX/ -----END PGP SIGNATURE-----