-----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-collabtive-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-collabtive-14.2-jessie-amd64.iso b183b462ebdf70495b0884398ffb09e1dc4debadab60cda605595088f7439056 turnkey-collabtive-14.2-jessie-amd64.iso $ sha512sum turnkey-collabtive-14.2-jessie-amd64.iso c0ca86270b0d2b497bfb8c484696767ec7b71c7fd016cc3b7dd3b890a6a44f984f7aa19e8a2a6259d5d37a087cb6f6b9236909d504a42fe427a89643bcee2c2e turnkey-collabtive-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-collabtive-14.2-jessie-amd64.iso.hash turnkey-collabtive-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-collabtive-14.2-jessie-amd64.iso.hash turnkey-collabtive-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZAJDpAAoJEIXCXpWhbrlN7T4H/1jjuCSSWHizF+GV+mKyQ8cZ JlNVjiiPqp4sWUjmFtCNxlYa66lTOrlLr7dvsQmaeIWiuQwuj9f3MwTyPnulHkjj lM3j7JfLXRjtoswUBP4UxyDj1Qmj0D6idpLY5H0ekIHGVJWow7/SCRsTH62NW8qY Od8Xc28+VcujmCVDSUEpcrVzLW9zIXBcLpQX56YBxkduRm8IbvJg8mUvdgY9QtRA r7OYtBVkAaZq5dUmKaLXQ5/85bAT5/USrblurlY9+UOFt6OI/k8dQoiFJFeTBifu 4bxbvanFtai2frT4HxBzj6ZjBJYxPc0L7mo9bNH4PVT2MHVsvQ+9B1JKb4b7My8= =fdlz -----END PGP SIGNATURE-----