-----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 debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz.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 debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz 8c52d9ecceb872d1f1c0df41bdeaae6b97e0f09044775745e3899ce411ffd4b8 debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz d70d5cc2d875c8a24f80651eed600258004c60cf955d6accf110a9cf310529ddc9e0791636b04c08e25b112a58bae495b7ae92d1aa347633b71c87008ace6b9c debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz.hash debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz.hash debian-9-turnkey-openvpn_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITOsACgkQhcJelaFu uU2BbQf/UG1gZyGLVV9Hjxat/n6cWdHqA212NQp54Y4tG+auryAEAnib6flF8l1b hgUHTwWNnpRXu5R1BI+SVXzXxebLapHnFYloofi8+q9vIfYXiruY8Av9NDfi0ZR3 2g7NI1gILFURB1VGa18ZCNSupcDQwYiqA5LKEbBGgin32K44Fsmp4GDPh4tuLr/+ zSN3zLsloFGrQ6ok6bYT3Sc9ZebsZjYk0uIFH4fprgutY1hS5eC3sPt+wtp4Miug D9nEcaXfqQmdNn+37sndboWJN7ityKzBxSpWyl58fTES5C7+xPl+yhtRDfWvKoNR FciDO9yJR+6UVU1tQCXjgtoZoC2ynw== =oyKj -----END PGP SIGNATURE-----