-----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-tkldev-15.0rc1-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-tkldev-15.0rc1-stretch-amd64.iso 2d881279c961d426eac30034150648f8b24ec737d4facf69d65ac7ff03a1cd94 turnkey-tkldev-15.0rc1-stretch-amd64.iso $ sha512sum turnkey-tkldev-15.0rc1-stretch-amd64.iso d0cc38246cd2b7e93fa637f0568d10ecc9fa5ade6027e89fe22c9a8a14fdee67c0761e7e0dd480c8d8d2671ab287096a6572c3a00a5723f7904a2b76c33ccbff turnkey-tkldev-15.0rc1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-tkldev-15.0rc1-stretch-amd64.iso.hash turnkey-tkldev-15.0rc1-stretch-amd64.iso: OK $ sha512sum -c turnkey-tkldev-15.0rc1-stretch-amd64.iso.hash turnkey-tkldev-15.0rc1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlrm4m0ACgkQhcJelaFu uU1BIgf/QFXSiQbjHscQNfzB8OkGhf7CeFLMhrQKmzEEhmTVFC4ILHX6fXBTQKZE M+5bTEuUWdUxLKfYoThtXOFGfbwtpzS66OMOqvqXGWKImwRiu46C9h8XhDOCTMMA J+UYFQR3yxkG4i63xhi3O0eqqndpMwXFBTj7tfJ+RwS+1C2yKgVE0v7P+v8wRmXt Wf8uJoSxd1jT8WuB1aGUt8GvZ431u5vjfBzkCOe4X5iBYbjBMLV2Q9FWbMc0f1AX 7cVS5ffHrVr8EvpqPiS+akJ67aS9gt3jWqcpbumex0mUhcRVrqHFerXO5OyW9WgM YWjah+qGRxndJQftZZ3nZz41U03UtQ== =Y28n -----END PGP SIGNATURE-----