-----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-otrs_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-otrs_15.0-1_amd64.tar.gz 428a8d88575e6b2ce8facd7b36598cc73350083f4e7f9fdbd9c60c93bc0e986c debian-9-turnkey-otrs_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-otrs_15.0-1_amd64.tar.gz 2330c79958e5b997e928c408bce8e7c4b7a0284b8a3ef63e5d41d856fcb0ac20012274a5fb8c369896e4a9f5a8b375ceed7839d623a4c254b2a630a2e4e60b57 debian-9-turnkey-otrs_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-otrs_15.0-1_amd64.tar.gz.hash debian-9-turnkey-otrs_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-otrs_15.0-1_amd64.tar.gz.hash debian-9-turnkey-otrs_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITOsACgkQhcJelaFu uU2NYAf+L6UFDYrRRQmkiZc5yXOrfQnnjW+rmwWYYcbbERT4FFrP8IJfIq5hH4Ou MGnWyCgmZeccCKhEdByWJjSgzN6Iacl3QzBh690YarwuaiaaDNLz6MJyjI2kzVwU iIcZpIJNiKjPNOBCOsWIa8ZfEZrOC9cjJ+uimm6BpOsGjG2Z1Lr+weATOyA3HtVF OqdS5H3zIAQJm/6VOeu7q52gBHKW3OAvZTrwwH2pg1yi3QGKswJaAYVE4mChIZ7o qU1wbvlig4jiRaZ2UNTg17SfyC+TtdMuTOOpeTs346qMgcUSheBR8rnccEnY10nv tNvZY8znzDdCwSBr6Z2G4Kgjc0IEFw== =NMN9 -----END PGP SIGNATURE-----