-----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-processmaker-15.1-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-processmaker-15.1-stretch-amd64.iso b4d700c871dc5d85bfc68e9b7d8089c8f44baff726bc9224ee5bd41a771b618a turnkey-processmaker-15.1-stretch-amd64.iso $ sha512sum turnkey-processmaker-15.1-stretch-amd64.iso 8857183b0572d3cfee70242a524856e4e6ba0996cfa2d4aaf2bc19a8a42a0e2999bc320073344a3c3ee1dd00aefacb591e85c0234382a0b817e6a93a56fac185 turnkey-processmaker-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-processmaker-15.1-stretch-amd64.iso.hash turnkey-processmaker-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-processmaker-15.1-stretch-amd64.iso.hash turnkey-processmaker-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pjMACgkQhcJelaFu uU0gVQgA1f3lNWxXyBPjTvaLMe3orMOn/0xl6M2O3fOlPV1ZPjSJC+RqTJB6D7yW 426pcm6Fa2CG7HmaDPvo7EKkFv9ruNQTnlM0Psq7R/swnzsu/PZxtFWpzqZBlGz5 ryigLN8XfS51bVyqHPrpo4wyYdxCEjIQXbVDpo7jurJfBqMJKR8RWDmltDi46s5q tLlmiuaNFkOntxQWief+d5oC7TGtLyy56QMlFE05p8LLllVBuAhCF+iQAWrowF9Q qXtft46ZVkmzWfcbP0LEhxJMsQuOVPUmVRkj6B+gRhcOCN+80AtmCyOl45K8IkFI IWKCkN1pKioaFhc0wwI0PlSIxrYaRA== =31Pi -----END PGP SIGNATURE-----