-----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-core-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-core-14.2-jessie-amd64.iso 171bb1c9fdba78830e7c5c0d084cf4b448ae564b041fff592f46a9306d51dbf7 turnkey-core-14.2-jessie-amd64.iso $ sha512sum turnkey-core-14.2-jessie-amd64.iso 20470be463dcb7f3b3a8a6ba4d8b25643775c8495547c75ba7c3ed545b4b0535892d84c40c987d00acf5eddbc49c9195556e750935456e9e538e5cccca7b3093 turnkey-core-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-core-14.2-jessie-amd64.iso.hash turnkey-core-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-core-14.2-jessie-amd64.iso.hash turnkey-core-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJY3NtcAAoJEIXCXpWhbrlNzYoIALTJxPYQChXoKTwNRkhLOkI5 fN6jybeMPVLIW0cQ/dOqEKLqrGawxDrIvdy3KXE3YIOGKRR1x8ClmRPxwanSi8EU 29S0SqBbdD8k0IFc/wfuHWCNfPUL8altLwCXPPbcT83xCUw4PAofKOIXRQAAq6d5 HM7myLKQH9N92dCiQ8/58GSX4wJ6TZFYKW2+2BPG4u5H7d4dm5IAl2eSINdXOAX6 IH6H7Yk3Y/PjG+FFNMoR7yVsarwpVQjxWxNihTPzqOYgmH3dit9fF201oMtJ7LOY IE0IuIbFeLdjF6ihotcnlcQXeC7jU+CqmabdIscsGZTAOCBg99DsQ3SlH1mBYdo= =LdzH -----END PGP SIGNATURE-----