-----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-nextcloud_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-nextcloud_14.2-1_amd64.tar.gz 1d56aa4d5e1c4c82c8a596d91adbc65a953754ebac2d9d5f886f86f15f675da4 debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz b5c1cbbb97e583c79218079f2a8ef6cd62161a1a80d35c82c9f18f1616ea00c97a12cb10f6f7fab11141333b7a43cef0065db1d113568c7a3af4c1674464582d debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz.hash debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz.hash debian-8-turnkey-nextcloud_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZNo90AAoJEIXCXpWhbrlNqAgH/1J9tBWhf8jZFK22dfot7Sqf MiQFeJRg+0g+luahXY75xKBVQIDEL9NW5NU2Lu587vdTcMJumwyvTUDFocR6L0Gi lz/99LUiwrEdFBs9BK6ZT6fEzGrWDtiS44O7LIww3KLy/4v3wJy80r9T7lJDc9kM CFFgI3XtKmcDDyODfwMZG/rNJl4j/U7ARNaqG3tZtTLRbbVHY/s0bvnynAK6YLwU cJgnxkLg1tHXyKe8Mqg658pPPPdr+24VJ1zZhDh+S3Juh6hSSaMhbN32NS4BsY+4 Ub8x7vF29bBWjhSqrDNO0tGRq94Lw5bNq9aniqh3DBZ0XMo6kDcJgMNl9Id86Bo= =pXxt -----END PGP SIGNATURE-----