-----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-8-turnkey-trac_14.2-1_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-8-turnkey-trac_14.2-1_amd64.tar.gz 02597e524e48b722000193976f8bbe465dcaaa55e889c3ce270dde7adebebe06 debian-8-turnkey-trac_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-trac_14.2-1_amd64.tar.gz 2cff36fa23ccb065a35edfc4ff4f01b3f9cc0488768999666cfc470166724912489260802870562378e638b9ab8a3aeb5e62f2e46cd2bec3069e0d12457c326e debian-8-turnkey-trac_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-trac_14.2-1_amd64.tar.gz.hash debian-8-turnkey-trac_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-trac_14.2-1_amd64.tar.gz.hash debian-8-turnkey-trac_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZNo90AAoJEIXCXpWhbrlNUvQH/i/lhk/U9NV53FHO0tQj9wph qRnz/4++Pcsha0MKupAIzjz6R1pTtotzeL8Wo8KPpT45IDDobCeeCtnapbcX/sje i2C2bVOE7P02n5QeExWXR42ewz3XAmcYrjHHs8Ed+FhTf9a46lw7IyCs5IxM6oHm DPSNj7+3iMSkopIty5sWbwaQZZSdvDn2rDyW9a1PLM+UHaKjsjn8ZQmD9QJui64r FgKb4V4fHd0U+kipkcvJrZDJaGVdVfkz1sXwA0wjMccFKaEm/H9SlBIcN3nOYNqb uGmx29KQqK+QK3/J6FqilKYZ7zfT08LdfjQNF17MKVjFc01IQ1K1PMr6BxcO8MM= =ivG3 -----END PGP SIGNATURE-----