-----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-simplemachines-15.1-stretch-amd64.ova.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-simplemachines-15.1-stretch-amd64.ova f6fef82adfd6d43eea8e7601d8daa36e21b8938cedb6ca308d487f3d2d97af31 turnkey-simplemachines-15.1-stretch-amd64.ova $ sha512sum turnkey-simplemachines-15.1-stretch-amd64.ova 11dc50021af64547f765a9df529907ad4588fe562810216b0146512fd9249ff1bc5ab9f734402d8b63da92c4f2793365c612431dda037edcb61eaf4485495fea turnkey-simplemachines-15.1-stretch-amd64.ova Note, you can compare hashes automatically:: $ sha256sum -c turnkey-simplemachines-15.1-stretch-amd64.ova.hash turnkey-simplemachines-15.1-stretch-amd64.ova: OK $ sha512sum -c turnkey-simplemachines-15.1-stretch-amd64.ova.hash turnkey-simplemachines-15.1-stretch-amd64.ova: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pjgACgkQhcJelaFu uU161ggA1mMnAxL5egdAhxocBaldi/PigyEvWUh40MHwBvikHUfD4H8AY0EoZrx3 zmZWU0vqWLqjoibUPv6AAMTWgeDH8f27FUzUvPqyQ0YMLXbsrRxnb85+qVHX/nhx /tltdikf2eawdc7vHHRsiy1SYTB2DypWGvtYIEuOMIwRf5HIQM4gLcQ5l/NnZJNI S3u+VAAOZ2ODBO/0B/0BqjrjNvQ4LlBwumCTvKuJTkt94u377/FQlAKnTYuHwNMZ wit7/W4c/Ku6b3IH3vBFioIKFjCO2qOksqZt8+BUFSamGiMxQrVL2JkrQCRoAQFc gu/VGZ3AxlKBWqcjNLWAb8/ByrL5fg== =gXNr -----END PGP SIGNATURE-----