-----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-lxc-15.0-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-lxc-15.0-stretch-amd64.iso d618e0c3aeace3e32b1fdbb2de463b731823e4d1ea2262124830bae31b7be71c turnkey-lxc-15.0-stretch-amd64.iso $ sha512sum turnkey-lxc-15.0-stretch-amd64.iso 149cc537ca6039bbee1b1ed29304b5b3f6cf4b00ae6f9cd428956e914361c370291ff9887880a7e11e6959335199ce6c9b07bae8cf8a22c767999a74dc415709 turnkey-lxc-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-lxc-15.0-stretch-amd64.iso.hash turnkey-lxc-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-lxc-15.0-stretch-amd64.iso.hash turnkey-lxc-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITPUACgkQhcJelaFu uU0UaQf+LLUekWTCDQ46oU8LfyJXubOSy4XVagjac/slexXqpcHfATK+C7R3phXY 3IguQ97AD2wi9qgtSoPuj+kqxIEel0yG4qc4ZnpA+rNDK+u8zgrwvB5PzVdTnN4q gs4hWtjAN/XlckAb6Av82y8hG/z8ANvwaj6FEhS418KRzUbandqOkFbiQhOUXPWJ pAYwlzi1SZe7gVinImLsVUrc1dXQeqv6/Trs9zqYIMl4A07O9Xib4Ngcs040mWwx pRCPyWFDOERSNe5J5L/2ujCqLmAm69pl9T0pH+C04RElyYnOAPQGd8qinb0TPSje c7pmceg7VvJ7TTpTDS8bE7EUj0+BzQ== =a0QQ -----END PGP SIGNATURE-----