-----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-asp-net-apache_15.1-1_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-asp-net-apache_15.1-1_amd64.tar.gz fd5382728fcfc352cf512efa0d6744e97119fc83e1050cb1956fd9ebdee26576 debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz 210668634ab5a43507966fba033f5c934f4e7bdc41261c98a938cae5ed5e295b45b5ebe64a6a8b320cb56e6bd98759e2ddbcf63e47a8a8e4cb668e676005bf20 debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz.hash debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz.hash debian-9-turnkey-asp-net-apache_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pggACgkQhcJelaFu uU31lQgAr6rTabXKbuwHySrLNtv31QhXyVBn0MFNzSq/eqMc5uNarBCB1wxx4nua Si2m8DljT4t28bIi0i5t4Rie0TYUOpYXUufzTtA2Vfsx1dK0FNQKxYgye2o4QONc t+roofdU9YdbVNbvDp0c4DAedyADgX6/RV+vIK33EHRLJDFJM+s9chwvBWbDTGJr 082RqWd/DvFWv/THMsWtxSsG5gxq0VdveXVPNHOXls4qzi7MD7SQBmEoa4PeDWu4 V7Hg88bZKFKz3wIpVof/uk/JaffvlfPczF1Q1ouIlDyCFc0vfuV7Qxje560FspOQ UHxB3xUB+2syQgC5tTwrKFa8hWk7Zw== =sYIa -----END PGP SIGNATURE-----