-----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-yiiframework-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-yiiframework-14.2-jessie-amd64.iso 673d67ffd69bfc77e32e77b58d449108b568b79bf6c36c92f758a5885f365342 turnkey-yiiframework-14.2-jessie-amd64.iso $ sha512sum turnkey-yiiframework-14.2-jessie-amd64.iso 6d31257d8385e66a6af5243a80cd518c2c531abca87a005255d2f039049e403016fd40d8d802b01fddf7a8f880b842aa9618b12b7651ce8706aaef2f420a31f2 turnkey-yiiframework-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-yiiframework-14.2-jessie-amd64.iso.hash turnkey-yiiframework-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-yiiframework-14.2-jessie-amd64.iso.hash turnkey-yiiframework-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZIVn5AAoJEIXCXpWhbrlNrH0IAJP/sw9Fc0IkCZpecxp0qaNC 9xmKY+b54QOyDBM/BborGPMXnwkA5ANAkBoo2/qMbdJlrmeM79t30WoaoGT05dIL jUq59JKBKKDHpOukt3A+w4X8EsIgE5BE6J2iFReuDCjqh8KWz4u4JIHtgF5x7Ncf 29J5k+SEAzR3Qmmux9/pksTggC2x3YYX5qAkZpKXmVKsP7ffLntgYh4mNV2sSqb2 g3j5uJwqvo5tyOYYWDyNcH0dAcqo1cqrlgQ5rSI2To8GypT9MNvQjx+vOhOIfuBQ Dkikq3/7ro3uehIKnP6huyosTDIZUdzjn5MD9VRnl3kKBoHneJ4xX5StpsNvp3Y= =lQiX -----END PGP SIGNATURE-----