-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 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://raw.githubusercontent.com/turnkeylinux/common/master/keys/tkl-buster-images.asc | gpg --import $ gpg --list-keys --with-fingerprint release-buster-images@turnkeylinux.org pub rsa4096 2020-02-05 [SC] [expires: 2040-01-31] A8B2 EF42 8781 9B03 D351 6CCA 7623 1C20 425E 9772 uid [ unknown] TurnKey GNU/Linux Buster Images (GPG signing key for TurnKey Linux Buster Images) sub rsa4096 2020-02-05 [S] [expires: 2040-01-31] $ gpg --verify turnkey-observium-16.0-buster-amd64.iso.hash gpg: Signature made using RSA key ID A8B2EF4287819B03D3516CCA76231C20425E9772 gpg: Good signature from "0" 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-observium-16.0-buster-amd64.iso a96f8f2a5ca697ab7e6e7173f6f3f4a2293c68638c4b93c600769a4ca18cc91d turnkey-observium-16.0-buster-amd64.iso $ sha512sum turnkey-observium-16.0-buster-amd64.iso e0fd59b47867860cf82ee5f5813590bcc25d39eb63aabbfe3eaae4692343e6beabf4860671f8353fd9ee5639acca883af303e3e75c92b0fe8a5bbc60ecb8339a turnkey-observium-16.0-buster-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-observium-16.0-buster-amd64.iso.hash turnkey-observium-16.0-buster-amd64.iso: OK $ sha512sum -c turnkey-observium-16.0-buster-amd64.iso.hash turnkey-observium-16.0-buster-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAl7BD88ACgkQrF6wBJPl vBz3ww/+Jzo8j7jfcUYusYqajZNrNPZrSI2u6tcT6EEwyMArKOBjyM6f4ISSHYOj exsxLShYAxo/anY4QBXaTPIURv1YUWv69roVYjxCbUr1HbICSYN9YpYEWpd5dIXD fkhtHg/RJN9w7gNcxQdpXH5IfhjoMXPTzgdoXQvxpWH3myI7ueQZw7ZEK/dBgHaT 2ULXQWfofejpDpCm3gow/xyj6RGUxrrJWSdoaoUU5X1hxYTVB90rkMy2Zgq9MpRy ozwH+uhNmvMVyPPnEDk32SIlKAS001azKoBAMxioiFFwo2u4rYT85rU3Z6XRIapE pJqNLWhoA9oYwNFBmQ+9TQP15JfL8+hUVClA+DsWfX0dLYuvjr1OnRsXQKJ1muG4 i7/aRNtMSc/JmvtXjC2IoytOpj7vOabEF7MSiB/3zpTkhZwoUVqUtwpi9GmoiUFp qciz3AfLMsn/orMWUudBGEmSSzEvUlfNcm8W/+5V4SmNAGmYorz1/1gjfu1q/uoU vA9hEopUCpyAxFCBNJ8l5/snQ1jujt1n818vnSwWo0MSx3+EDpSzvkuN/slc6gwE 87W2HJ0sapQAnepIxeaSATyx9OJX5BhSWCvKqA6B0z0drMcWEs23157GUNZDOXW4 aKM1LSqS621TTJmp3slUDIpa9EN+xqGwIeeVOrHrMNpsZ+dh3VE= =/gRV -----END PGP SIGNATURE-----