-----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-mattermost-14.2-jessie-amd64.ova.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-mattermost-14.2-jessie-amd64.ova 2abab4b2daf5908b52b2e349420738b4966a13265b52b3a7b7cc8f12a302ac0b turnkey-mattermost-14.2-jessie-amd64.ova $ sha512sum turnkey-mattermost-14.2-jessie-amd64.ova 09a71e34692635eeb573ae70a76307ead66f9c20a4edd96d9c6aa691d796e4b54be64d1e6d46e4f1e787e55835e0d1cfe13c7f006cb3d204157c4648856a9c92 turnkey-mattermost-14.2-jessie-amd64.ova Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mattermost-14.2-jessie-amd64.ova.hash turnkey-mattermost-14.2-jessie-amd64.ova: OK $ sha512sum -c turnkey-mattermost-14.2-jessie-amd64.ova.hash turnkey-mattermost-14.2-jessie-amd64.ova: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZNo91AAoJEIXCXpWhbrlNV7cIAKwIo5XAt5MZuLETPLa89R0o XN9bC1S9jx8AV6z3owVgY8lkXs5t3/cPdG1sLvBcAuOv5Dc3ZVnl5Y4kmGI70dU8 jMLvYqixKorozdjHGVPGClpCfAVJjyv5sCdBMs/fMUWYpM+SzTK2t7onLPyHfc/k lRp5Xp9IAFkK+cj/O+eJrue8RnTp0nnB0NgrNeDqTqUzRY1LNd4pFh/2Vtc7Fau/ shQMGi8sdO95w0yfGjnev9K8W4/9Mo4UEl+OsO2oXokQzy4vrcbMo31uoZpHBZb2 0GEXAlICbYzvGuc7Of3z6xa3aXcb4a291uVuL8HGjj6N1PcHZk6zFarOyv4k4UQ= =IAA1 -----END PGP SIGNATURE-----