-----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-icescrum-15.0-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-icescrum-15.0-stretch-amd64.iso 069568871afe556b2b0788aef2958644d8df02a69f92405d53c15c4b7605e035 turnkey-icescrum-15.0-stretch-amd64.iso $ sha512sum turnkey-icescrum-15.0-stretch-amd64.iso 8311dbbecd46fdd569a0fb32a9296ad131c2eaf26516485d6c8f22b2536006460a9e41de99dd667f598833100b9fe71a3796f1e1109b24d3c628c390e62f451b turnkey-icescrum-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-icescrum-15.0-stretch-amd64.iso.hash turnkey-icescrum-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-icescrum-15.0-stretch-amd64.iso.hash turnkey-icescrum-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluD9ToACgkQhcJelaFu uU3cDAgAhKSLzQVhJvDP1UR4PNGvvTkdeTPaNDsyUFUU9Bi7wzoNYmcH1Vk2wGG0 +d3/1lgM1brYlTlGRZHgbedkpImmjlSNkPEwFcbDQ9N8w2zo5iTKp8k92O15odQX vxs77jsWTpzwqVhhYhK/iUynaAQiQqG1AQq3zp3qkflkd2QeT7AiBd9X8F6UzHiv +gqBa9GjZCQ8gstarM7GoWK9yrF7HrrOe8KTYpxbMP4ZPF5yPW4n59Ysf70mx6bb V+4q03Guh9QowEiC9yZugbw5nDQ8J/AvWeqUYCpmOP28u6lvMfdY0VFUDCzYQg4m RMZyj0KtyE+0cdowvFFDinseGN3E9A== =fIAm -----END PGP SIGNATURE-----