-----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-lamp-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-lamp-15.0-stretch-amd64.iso 337f8076ee7f813b3666b8137436f583bb554bc193a529703323fa29cd047261 turnkey-lamp-15.0-stretch-amd64.iso $ sha512sum turnkey-lamp-15.0-stretch-amd64.iso 89d122050dce6e758c9a12903ec13b4677fc9e645fabd8a63319c4c62ebcf47af271ca58402091d8415c678ac3da2a58bdc698ec3bd35d0b5f2fedaa29ac35db turnkey-lamp-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-lamp-15.0-stretch-amd64.iso.hash turnkey-lamp-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-lamp-15.0-stretch-amd64.iso.hash turnkey-lamp-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAltMlToACgkQhcJelaFu uU2QFAf+NekCLu4ut+8dkQJ2xgNkwv+QwWlzYSrHpNzqwNQ9QkOrhu9iSe4csoDc JVmSzy0RuKH0dDSKKDXJgUCA7anw8VoSjSus4PpZibN5Wuv4zzEK8Xqnk9KAzuFf ChpvWB3sh3NkBzvqd6YvcU534q+CC/+FwvQ27/w8rV+p6H/6IJpaUSGjlJ1X00RX oaKJXaaOhFayWjLXgg6wyMaxef7HcF4X6+jyR22Jzg7i5MWO9JVk3ZmaGposa9Vo cIs7+AglcnXQ33E8gpnsibgMPrTLfm18IEWJJKYe/6F8RfIW8R5NTy4kouI8xIjg N7cJCkJcR9GwJ55j+4qgZOM23Mjk8A== =us09 -----END PGP SIGNATURE-----