-----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-rails_15.0-1_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-rails_15.0-1_amd64.tar.gz d4ca1f698a62383c8558779fdef022db44d05d9d62f5ae1249c681c1de65c154 debian-9-turnkey-rails_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-rails_15.0-1_amd64.tar.gz a9e63f6960f48952c7ba53b2cd7ccced2225f27faa09c04b00cdd310c2cc725c40a6ee85f7a846f95129878cf0bda630e4f421cc61766b8108e43ce1acf2e00b debian-9-turnkey-rails_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-rails_15.0-1_amd64.tar.gz.hash debian-9-turnkey-rails_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-rails_15.0-1_amd64.tar.gz.hash debian-9-turnkey-rails_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluM+9oACgkQhcJelaFu uU2KDQf+ObmbMBG2XrjWU0Hbk2XXagQPUc9AqkijyfPGPvpKE4njL+k7n1npQkRl qy4tH9+DVp7IPrl43i/1M42LPM3XmzgFVBpLmBfluY5ScVeZisuFT3EKw0HGsyhJ c9VJpKQ64NZ1ZgSeEM5lwObH4/TFE8WDTuwDEmKVves/HZQ+bwQNaCMQR+SSP8Lz LDkfOxwpI+hmqhy5nxMKsQfw1jZp5OVpXpcYkzjDI52R3mBuzBA5OOBSPFDxJZNx MpmZJHGQJSmyB0+32/aktCgE+sSa5ko4bBkwM4A9+tmKPew9nEeRtWrsalEsehew 25y7VBziWycWAZXLwwo3u+GdL4st8A== =A+X4 -----END PGP SIGNATURE-----