-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 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://raw.githubusercontent.com/turnkeylinux/common/master/keys/tkl-buster-images.asc | gpg --import $ gpg --list-keys --with-fingerprint release-buster-images@turnkeylinux.org pub rsa4096 2020-02-05 [SC] [expires: 2040-01-31] A8B2 EF42 8781 9B03 D351 6CCA 7623 1C20 425E 9772 uid [ unknown] TurnKey GNU/Linux Buster Images (GPG signing key for TurnKey Linux Buster Images) sub rsa4096 2020-02-05 [S] [expires: 2040-01-31] $ gpg --verify debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz.hash gpg: Signature made using RSA key ID A8B2EF4287819B03D3516CCA76231C20425E9772 gpg: Good signature from "0" 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz 87e569b3bf0d2d7433c8d9988bccefa2f2934426aa6aba830bb5cbee60a2046d debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz $ sha512sum debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz 327a04ec1752e5d1740277dfd9b5d017a9d3de830b50cadc4f8223450c9a59afe68999462387561ad01e4645c156090d5919fa20419a2d5aac37a5da0030c157 debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz.hash debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz: OK $ sha512sum -c debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz.hash debian-10-turnkey-domain-controller_16.0-1_amd64.tar.gz: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAl+L/V0ACgkQrF6wBJPl vBxBLg//SjSambxrYQDqgUUjtAprzAsgnpyfVAQi0pUYeNsNUuy8xp636JXc7cKE QhQdBcu7PSUqT5JorKDofl8bKSlmMwnDpxLRhFE4sWo1b4VhxykolSJz7DMuvlOI gdhfFCsAoww0wF7BUdmyL3RDHjDL7L2GtJjOmESHIuZRXY0nXWZrnYqsWSnCrbhA Wk8CB3PLXTCZnqLAFlzWybpSkSjUcWhJAfWYYQNrPg0XRh8f8e+PX6ZDCWqFAjHE syrOh/+xSgayfg5c+MTpGPyJoM0pl7hleq2LKt5SXyFQJT1Y2kqsINpQqQROXtvx 2XH56B3P/TYFC0d4yiJx6E+TSkOZbYX9ANygq3WKYjyfiB8SHdcJv9J+fk/nixpg AEDke/ai/X78C4cy2csK8vZGsn5G0dzZ1JAxFVRUPFYkWu8zZxbUrZftqEUx7Uqk Pi5jtLT4LHIzgurixxbRtR2NhpAm4R9tmxejvnW8o5e6N3kIlzTMWqk//9I7cCzL dA5psdYrS1BN+gpF7771KEpMOT47erB213li6QzfO6QZzd1Vn37vXmS4wl5/xKRE 2LMFTNRO6LViiVbukvnrK7olYzfiW01tCgOcx3cL8JDADCeXlKd6iDf98P+vB0Y+ Ed4Sd03Z730Srej3w1KQ7kLVKJTUEmAlNGHTGsWW9YLJlkhyB7U= =p5/G -----END PGP SIGNATURE-----