-----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-phplist-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-phplist-15.1-stretch-amd64.iso f6cc61063388ab71a7ae993b4ffbb586c6c6bfc014bff66e8b63de2a74e727e5 turnkey-phplist-15.1-stretch-amd64.iso $ sha512sum turnkey-phplist-15.1-stretch-amd64.iso e0cc357dfbd2e0a3975efed2db85df47173fb50decf5dd52a24ef51456d760673a040786913057af665e6bc5bfe09f6e951af69fbc4c33269a70a168562b7166 turnkey-phplist-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-phplist-15.1-stretch-amd64.iso.hash turnkey-phplist-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-phplist-15.1-stretch-amd64.iso.hash turnkey-phplist-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pjEACgkQhcJelaFu uU3NIAf/eULc+yFW7ZsbppYvvB+OUW93KbiQiUPVZ51i4gUMeDzytJ1s49sBvXiE LpEipzMlG5oePKDPr/JbRu43Q2vTKPWJ8p/fFy6ALKKBUsQr90j2lxLDPd+PCn70 RoWwCk2etMOasTj3UPGnYXQjeawrysu1jGzyhefkdIictAI9ZbXv+i8qDSaCXZsb SXRNHZZx092mhQvykhAfCEtIdDIwhTOgbUMlqjIe6d+UOTdFBjbHzw3+1fSdCmHv wap+f3MLakBQqhVjwkpIfNzwqjJX7RWEJLllVpgDJV/Gk7pOPYLqutiITizm1DVT Q8WtO0/CcEI602UeZHntZaj+QTfTMg== =yOc2 -----END PGP SIGNATURE-----