-----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-yiiframework-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-yiiframework-15.0-stretch-amd64.iso b084a3b2a7e327a63e08fda3d31d71841ac9f6f3a80352cb23b0b10961d95fd5 turnkey-yiiframework-15.0-stretch-amd64.iso $ sha512sum turnkey-yiiframework-15.0-stretch-amd64.iso 17cb12f1410d14c993aebed1fb97c9af4578906e31a297d88895fa0d803cb4ae3143578e7360c966023d68febeaf71143e98abe95e636b26a337b5222df2f41f turnkey-yiiframework-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-yiiframework-15.0-stretch-amd64.iso.hash turnkey-yiiframework-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-yiiframework-15.0-stretch-amd64.iso.hash turnkey-yiiframework-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluD9T0ACgkQhcJelaFu uU3FcggAtTDnABqZVZ2WmqFUeBRUc9vuR48UWL1xn/zJf8wenX5vB5Q080DM6P9i DrhJhzTc6il8aAuXSAgPCuZwjOyHoMJC+enyWd2MSugzQ2ejoiB6iPVbsgPl35qV s2nBfv08iyyHbCNfJfykjEA+sZkdXpnpuKjUmH7NIzqdXl1mw41MKczBBvgWjx1/ NM01Or8ptVhlwEK8gynM14jyp7ERg6Xb/MMZimbeVMmgRbb66ULkmnNU/u8oIIu5 UO1tX9rEQC38jzS0bsY/DXYLvZV6loHaotbrutyPJ95VYsyRmdXjldGZXwKlqxJ9 boCr9G3Jjz9uPqDIucMhjb7yJPn4IQ== =KepN -----END PGP SIGNATURE-----