-----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-8-turnkey-core_14.2-1_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-8-turnkey-core_14.2-1_amd64.tar.gz 978b9dce11ce9e48927f6c89fe49c16ab257820ae97a84eaa9dd46179dfbe60a debian-8-turnkey-core_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-core_14.2-1_amd64.tar.gz 9c7177661f074ecde4956051d672535aa22b716eb425982a9bbbc56dcad0dc7f8efa201e787faef25f8e3925f5a1bf9025a3e5ed5acf44db2fcfcbd00f5707bf debian-8-turnkey-core_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-core_14.2-1_amd64.tar.gz.hash debian-8-turnkey-core_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-core_14.2-1_amd64.tar.gz.hash debian-8-turnkey-core_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJY6fjBAAoJEIXCXpWhbrlN1ZIIAIMo7OrUVibuGMZPFrkY0Ocz A2ifmMWCXkIX2g/qSFA9niBJdPbRoKovLnTrt9mTW32VDinNMytRR8lDpoWVsnOF hWIHekKjE6dzHxORBPfjYFxD4ez32VQn7TUGBXpuy5iJe1sits4YaqZ5Dfs7wMDO +R8BYpmYnhieQdn98pdfh78vFsZaypS8tNrm6dO9R8O4cMULHfRFZLZ+fZtWq8qh 5mG/nPg3u96gPNWgR5Gvz5TOH9bqrYD2Isch16m7u/uyFjGwTr44Xz8YGI+xcbb7 ywX7fqPIw6gXyi2l5BTQHjw3FYY1UjDLYuyeFmYCyLl3f1nEnzBoeFbAnPUd61c= =Vm2Z -----END PGP SIGNATURE-----