-----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-mediaserver-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-mediaserver-14.2-jessie-amd64.iso 789463be2581a50c94f7425cf148fa9272152f9c3e3c4278dddb177be16911ab turnkey-mediaserver-14.2-jessie-amd64.iso $ sha512sum turnkey-mediaserver-14.2-jessie-amd64.iso 7285c31cc61e9a01e94e73dabaa9fd2a3cd801effffb2a70f9b4f62c38c38aa22b9dd509935820b417811a76c68c0bc40fa8504a886366e90f276653ac469bc1 turnkey-mediaserver-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mediaserver-14.2-jessie-amd64.iso.hash turnkey-mediaserver-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-mediaserver-14.2-jessie-amd64.iso.hash turnkey-mediaserver-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZeIKlAAoJEIXCXpWhbrlNcjEH/RgZXGUoJlKfLXxe+DR5gj9m i+NUmZM7xNy/fwPYjiuIsB/O1xhiMVG2b8zeJOK5QKIdxKGKtY/kpVMmSxDFr3gu /YxJsobeKaXKVtuoceIubZtjqg7T2dX1ookEb8wZHWSFIljSI1PT1VsP4H+zvQ5h aRE4wPLhbwE6bz9TRtXubQJ2X+0dRBNxHHLso9/4Y2nUFUHEepqQpIK2pF+0Esj9 L3NWZB8076yS/rM7gE6bJBGhk3Yiajb/+MmOcZiesi+E5XCedzw94h0iLTFGXpiG dgorf5fxpkc4mqTrG2YQOO8w/QKzvcjgwFnjHlCTZ3UbGUIb+QQdlRJRBuxNbvE= =UYK+ -----END PGP SIGNATURE-----