-----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-symfony-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-symfony-14.2-jessie-amd64.iso 5f11d5de7c47e06cf185864d792674ce7c32a3a2a2e1d21a1c0e37a4d5ac0615 turnkey-symfony-14.2-jessie-amd64.iso $ sha512sum turnkey-symfony-14.2-jessie-amd64.iso 6c6f98d8e79c0062ab7c39e07df48e0a8432cab736a9cf224209e86c1f1ab54998b000722c678b7559b291627d4bb0aa0807f93b401521690fb865bfa9531d95 turnkey-symfony-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-symfony-14.2-jessie-amd64.iso.hash turnkey-symfony-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-symfony-14.2-jessie-amd64.iso.hash turnkey-symfony-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZVQkpAAoJEIXCXpWhbrlN9GsIANbECUeqdKUwJoPQSqahY7qA mqlLr7F+LJaZ7er7DGzr3ajxi1droGwRmDL21b5hbLXiGYDr1Wd+HSdPBFR1OKyU cbRfW0kWjRY6yFB+22tKDRAVUrmApzCOeWXbnevJ1TeWwuEDsFzAA4Lp5j1ISGPU HEaBDXSGe9AkfytTZW3uRR5qzEzUX0Nu3WjB7CE/XiI/ui+4/Bms5qofs15AnPz4 qc7zFupuP9FTGjYVbagVF5qVZsjJOFZu0cq8bxGP/cA0VNvufYVVP3RfB4m2gXLg p+iR5Wqdd0uDvGJ2QOkvR3nt4357Mp6RdNm+4+N9PDtnmpphANjnmwP646fX1yM= =hdAI -----END PGP SIGNATURE-----