-----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-mantis-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-mantis-15.0-stretch-amd64.iso eefad71c667eebe12671336f5aad5278ad5a86d116a840e02980c801e232ec09 turnkey-mantis-15.0-stretch-amd64.iso $ sha512sum turnkey-mantis-15.0-stretch-amd64.iso 59161d0f41261637feffdac1c4c69640df9082f6472a6633373b762c336f817fc1cf4cb16fc7104ebb46b6bde0cd378783d0308da84161ab2fc3dbdc6075f810 turnkey-mantis-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mantis-15.0-stretch-amd64.iso.hash turnkey-mantis-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-mantis-15.0-stretch-amd64.iso.hash turnkey-mantis-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAltMlTsACgkQhcJelaFu uU2s3wf+IUd2Sup9xA+Lx/C6DMU6wabtQ85sTzwpIpA+R+1G2NG9IE+WKPCvxbDx rsawF+c3S40vL6aRXAxE1SL8oftLc6vGPsUJOUF4/w4a8BELueGvrHOG/O4/dU97 rTQXlaTcwZZ47tI6sQQICzYlqZbQV3kOhrAzFr1RaRFWVdDg0EdCTbVvP/WBp7/u D6WoZwWEIwb8ChxLkSOuRM/19NlflIvPeUrpJxxiTs7XVHDkogyfLcyuxuObtnqS je7fc7yI0kulX2gtxR1sUEWdHfNgKdV4XXzTXvx52fWUhBPWVuHCKajIFk8PubRk Rkorihrrc4ILgDvauVUnI18NeT27wQ== =kgMH -----END PGP SIGNATURE-----