-----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 debian-9-turnkey-symfony_15.1-1_amd64.tar.gz.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 debian-9-turnkey-symfony_15.1-1_amd64.tar.gz 5cea7969e1dcd869ab4ee0e77df4cb867d2a3fae6313b2493d9113049cfbffed debian-9-turnkey-symfony_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-symfony_15.1-1_amd64.tar.gz 3da01d60d7353b2bdfaf03b6eb7991837cf451e66530f8e4e87acde341553570c8973d73712d9f5da545273fcc7ba0d7428010c55b717d38e937bf8c412823af debian-9-turnkey-symfony_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-symfony_15.1-1_amd64.tar.gz.hash debian-9-turnkey-symfony_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-symfony_15.1-1_amd64.tar.gz.hash debian-9-turnkey-symfony_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phMACgkQhcJelaFu uU0ocwgA0mI9KVwQ4RaL7OnjX82Fst5evG4DcYpv+WS/VLmTqdOfTTBvUjhLsUGQ rxWJe/0dRSIACf2OMrfGrSFDY3JgHICd/9KkHVKqk2EugxKMctTqmZ5zYdIYvmHV VFPcSd1WJX80CqNKxZCrm22redX6pGZe303LOTjsufoCuLyjPqjYkOZtHsfsyXWp yUMFOWE6MJHc5HNJ5pQCldiTp3xP/AFTTSVOSQANRHsusu1n0yvKFgrZhsBfKKbs MtSOBuxCF43ptLZ7VpaHpWhqlYSvEcwej8gMEVub/2MTUbAWkG8spoPiReFxdh1l MrnKY4GlPMiIG8NdqtwT0F+tefbyHQ== =cl8X -----END PGP SIGNATURE-----