-----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-dokuwiki-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-dokuwiki-15.1-stretch-amd64.iso ad6dd95fd59149f9fc944a3945986357e385d6afd02d35adb73fb01d3be6cd05 turnkey-dokuwiki-15.1-stretch-amd64.iso $ sha512sum turnkey-dokuwiki-15.1-stretch-amd64.iso 4baf41e304a404a2a4ff19c573fd8fbef060bb80d210cad423bce10391d48c0e1451d888d7884b507c84ba2cffdb6a1fbda309e800974b51bd6ebb5ebf171247 turnkey-dokuwiki-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-dokuwiki-15.1-stretch-amd64.iso.hash turnkey-dokuwiki-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-dokuwiki-15.1-stretch-amd64.iso.hash turnkey-dokuwiki-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlxhNvsACgkQhcJelaFu uU0trgf9Gl5K1jUiuqERdjGnHGX/fW5T5pMe4oV+aBKIbCaDOA3TQM2urXjFud/z bq8ZfW3/ANrmWiJc+khi51E1m5eYCSXQcjZIuKyEttkOSEqTaVnjVIdHaotXoRLg kmRWy+OZJ0j5qjgiz5CJaQOx9Fdf1ZJuC+LZoRbrj4zCxKwiEggUPCo5oyyBJCwH 8E8mC5gJBo3Lyf5oRxBByPigiQlocFboh9b9EnebU4TsEv6rsROKoq/mxmBau6Rs 8aQWWsCRXGuSPm+qRT/8rZTZUjViBtiXiWiq6mjsPt3zjlyI/ycW+f+eT3f4Cw8G 1ZewIEJxKCvADm4wdFWy1jjilPIYgg== =mOGT -----END PGP SIGNATURE-----