-----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-owncloud-15.2-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-owncloud-15.2-stretch-amd64.iso 19b375416ce167705f2eb402dcc06580782c4a2d7d12261416f5b8d763115e48 turnkey-owncloud-15.2-stretch-amd64.iso $ sha512sum turnkey-owncloud-15.2-stretch-amd64.iso 76d4ba5f3ecb1d30ac9d6411255006908a0a86d7bfc7d430c0bb7fcc6393c452743a383e8ea4a678923f7dc052903f79af4186bc5aff403c99e7bde2f51de05c turnkey-owncloud-15.2-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-owncloud-15.2-stretch-amd64.iso.hash turnkey-owncloud-15.2-stretch-amd64.iso: OK $ sha512sum -c turnkey-owncloud-15.2-stretch-amd64.iso.hash turnkey-owncloud-15.2-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAl0THAQACgkQhcJelaFu uU1xmAgAqFIRd/6PkxhtrvKBohwV3ULqsXE8ypoi71hHZi+8IAeMpBqM1QZrqsTN +uz0UrcTRL3R6ZCzUn/7OO7/SAv7sr+RsqBx4KA9XrSsNqYl7+hTt1eAltr/SkWh 3A8PAICheUj/Y8kYzBkojwnzf/qU1vCLwi259OoerqmtEijby7ZSC1wrIEi7CEXc xNT0+ojWc49yJY+SEE066EGUz3GSAt7TY+GzsiwzHLcPg6C4tF9UKszZcG5gTAnq k0YXgpQ6gcKhuiPfxGsfRYjDU1yV+t9mJW034q3B2wUf1M2AkiwdD/vxHNKtcjnP RNWq4qLt7vUIjfA0MQ/gqOb1Ys/7eQ== =It5r -----END PGP SIGNATURE-----