-----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-mysql-14.2-jessie-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-mysql-14.2-jessie-amd64.iso 853c61fbcf3834f6358b9b8960fc5557f897110b1122554af23e8b42d830b049 turnkey-mysql-14.2-jessie-amd64.iso $ sha512sum turnkey-mysql-14.2-jessie-amd64.iso 4d4cf0c063bb84b764eae13267f66259a81195dad3d95c303d2bca7100f858b0ec0e92a63d1b1117de1609d54756f5a39e598c0f16f7e70f9a1a644bebae24b9 turnkey-mysql-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mysql-14.2-jessie-amd64.iso.hash turnkey-mysql-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-mysql-14.2-jessie-amd64.iso.hash turnkey-mysql-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZAJDpAAoJEIXCXpWhbrlN7dcIAIKMH63mMi8zOlTOmCE4BmM+ 3xHamwHEDUoqYvdH+tm2+AmVjOasrLgv7TkA0igqpy9NR1qgzuacjBlvVP3rdBdD XqOErdM36WII50GnbcNoSHsh4XaKbtWgNGtGE4IyE8pIzjt9auFQw1uduykDHNhU IuoTO94+lUFENZdg+9W7r2py/p4pxnXnz3INTfLhzNpFuNKYqDRFp4YiXW5yV6gV XjVhLyq9WSusjlPXJuTEJHSqb3s6+ijwgLnm96Aor9q7ZfCQlErYLl5KrSkidkEU zUkDDgNpXNg826nErcUvMe7ZA9YaMQgQzzXv4rokJGgnQYInObrheRVqbA3zOuo= =Xqy8 -----END PGP SIGNATURE-----