-----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 turnkey-asp-net-apache-15.1-stretch-amd64.iso.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 turnkey-asp-net-apache-15.1-stretch-amd64.iso 10cbb7451b58bec344ab4cb3bc876b926c5e5f0cb59595011cecfa1aeb77a9bf turnkey-asp-net-apache-15.1-stretch-amd64.iso $ sha512sum turnkey-asp-net-apache-15.1-stretch-amd64.iso 8fa180cd29c4e797cfcfacb94d81cdc68f453a387922d97b9c925d8f83eeeab791ec51e114b2dd8c6f24eaa2fbbece6edf78a45a869f5011c2af5d81cced55b8 turnkey-asp-net-apache-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-asp-net-apache-15.1-stretch-amd64.iso.hash turnkey-asp-net-apache-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-asp-net-apache-15.1-stretch-amd64.iso.hash turnkey-asp-net-apache-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phUACgkQhcJelaFu uU1GQQf/ZvdIBPG1fW5zSgOY18K4DCW0PY1NkFpRT8i0yj3QOu0Uf/wkYzz/aSrs 6oLMPFzq4p/N9a/le994m4JATT1qdmkZdUjDcqkjbLRqL9s4witiVYYkZlaPrDqF NdDHmobR9PYj37n21ZPQ+elYcbccPxPth/NrfInyTi/vhxx/oPs2SUb6uUu6NMtE dEm3mYYyMIiPtCl9GZzyP6HNELfc88p2L1GEmldqi/fQJjdaXn/A+R9NPQzBw/Co GzRjU2H8uq+3okOPi6hNFM3UdNTJDVmKpUT4+kdPrFWpac/SrOcxSI33ct1KvNpK 7keEQjZaAuZaN35+tbvDTZkRf8h/Ug== =H+oi -----END PGP SIGNATURE-----