-----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-simpleinvoices-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-simpleinvoices-15.1-stretch-amd64.iso c87ea94b8e94e9262c28a8171b61941e005246004fcf9244de2bbffe9149dddd turnkey-simpleinvoices-15.1-stretch-amd64.iso $ sha512sum turnkey-simpleinvoices-15.1-stretch-amd64.iso 96c8fca8c94eb7a4a99ee3e8b13e38f3de5aa6f4a44b4d359e8b2be70b1b8784d1896c9d5acb7a5cd75130d49ce91ce61e807e8b8502ba40e75abf54967b1fca turnkey-simpleinvoices-15.1-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-simpleinvoices-15.1-stretch-amd64.iso.hash turnkey-simpleinvoices-15.1-stretch-amd64.iso: OK $ sha512sum -c turnkey-simpleinvoices-15.1-stretch-amd64.iso.hash turnkey-simpleinvoices-15.1-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pjcACgkQhcJelaFu uU3qgAgAnEr6fqKcX2zyVmv0CbLUIiki0HU24puNFTwwSfJdDQ1HfF+yA8ucAe44 JpzQnW18Za6Yvx3ybhy5a28bW/hxXAn4LCFkhR5rwGiurhj5UuKAU4Ziw+J7lCj7 sa0rVTJpoVs9FArsO64BhrutMnyeF2A1LzzxOy6DyD9pYMw0FsNlD1llUzznzJcf hqi59rFIWtwYxlfYDWhyj/eD1eJ0OS539IiuXzOIaMhGFCv/xQuxN432kc/QNAqm K3A21QLopM8mPH3eU9mwVWvuLOEOkzHsvgI3StOu8WmuVtXF2ro5lk+Qlsi1MnBt yWcwa7rvPHaiR4nrV1Js7SnTlHOdrg== =Lais -----END PGP SIGNATURE-----