-----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-mayan-edms-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-mayan-edms-15.0-stretch-amd64.iso c5e833ac16b8ec2c59e7d718862a074a7705975ad653b226194e6b95ac0e2f2c turnkey-mayan-edms-15.0-stretch-amd64.iso $ sha512sum turnkey-mayan-edms-15.0-stretch-amd64.iso 50dbf74684857155a18c47b3738677e533e199e259c55a00f82dbf6689112d942b8aaeccac267e16eb46a87f41778f6dbfc0418b0dcc4d968038184225d65e3e turnkey-mayan-edms-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mayan-edms-15.0-stretch-amd64.iso.hash turnkey-mayan-edms-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-mayan-edms-15.0-stretch-amd64.iso.hash turnkey-mayan-edms-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITPcACgkQhcJelaFu uU2cwAf+OPfl36EwiynYDKzw8++j3gJdJovTlHk/iusnDxg4iv7lp9pUcv0jRNO0 lESsSDct5GhOFbOxVe20TuxWYRkSe7lgDz4nIpDhMbisr5muqHlmmn3vvJuEUC3A 0Jcqmc/yUEj2EN6fUWsvXlmllR92pjYf/4FdKTID0x0yXFic/Lo3ZTOobsyaBjkX 7PoMPV2zx9YwaGOBnW3lV2lmReb0RKKx6pAHz5SgiPQL7rkpPHrs2spmYxqV3kHn fL9LJaMk4x/FeNcplsliRL9H4vnZf06ptr4xr4fa2mj54kthVEj/aF4navlfUTlK 0piiyXwGIhvBK8TWb2Q0BRn+BghN6A== =f9Qp -----END PGP SIGNATURE-----