-----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-gitlab-15.5-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-gitlab-15.5-stretch-amd64.iso 171ede395f50c41e13f06927170fd4a13dbed9d30a412221e376a0c885c29421 turnkey-gitlab-15.5-stretch-amd64.iso $ sha512sum turnkey-gitlab-15.5-stretch-amd64.iso f031e89f8fd003984961510d18d294fdfe3e92779770b6ade847a896895e54829d57ee5797c8b44c3249eb57e32757b9a7435dd0bb49f04bf1e7407151cac730 turnkey-gitlab-15.5-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-gitlab-15.5-stretch-amd64.iso.hash turnkey-gitlab-15.5-stretch-amd64.iso: OK $ sha512sum -c turnkey-gitlab-15.5-stretch-amd64.iso.hash turnkey-gitlab-15.5-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAl1GhVkACgkQhcJelaFu uU0OOwgAuOdjajD1yXF+B8RVDInN5jG1I2Ci1nWj2pXNp/yV3d0zpACumztSLuRl UQqUyS5YYthE39J7FEChdr0FdZcbeyFfRtC/KgGkHcxa/40VR//vueDIJ06uuY9s g+8fxW8FYA2DipDvl2W3QUdcQEQQVRPmrmwibENiYDBEjjNoirLXw1YQm9sgbEik 8mRw+Mgt6nTymmcWpY1Uid2LNXUAf0yOSMVzkOSmg378kUGEe8k+CFL7LpiiWRdo 7AlHXHK/7Lyiy2insoPzcrfJLS6rEb+4WowehUPaVoYv02KTCtB9TM3c8gAi4VH7 gzDtakYW2itukrGlLEOWl0GBVR0gKg== =D3Wd -----END PGP SIGNATURE-----