-----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-15.2-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-15.2-stretch-amd64.iso ff07d4c8c84d50fa76c80748cb5d65359f56844aeb315f4da634a0ad0ab07a42 turnkey-gitlab-15.2-stretch-amd64.iso $ sha512sum turnkey-gitlab-15.2-stretch-amd64.iso 01aedac23b74bd1bdb1ddc45db2381d53131b88f014749868f8fd0a8aee207df43ad57a97bdf486abd8ffc23ba7418059787073f4a6cc18509fcb84c5f142a2d turnkey-gitlab-15.2-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-gitlab-15.2-stretch-amd64.iso.hash turnkey-gitlab-15.2-stretch-amd64.iso: OK $ sha512sum -c turnkey-gitlab-15.2-stretch-amd64.iso.hash turnkey-gitlab-15.2-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlyZ3PoACgkQhcJelaFu uU10+ggAw9f/+FL4C2ImmDx8KAzf9Y1jsEoken4JY65UZqokluZ1GvpiTA/fZe/y NrzP/WPY4wZvswKQnuadDPz8+HjjScJijfXMvJNgLEN3BjeJZH5kbGdgF8PNnEYf n5EmtGwZvtxCxsHr4OBSo2HJv7toU6pgXjpwU2+J7olbWBbg+MgNykSvL+jiNfqn 15viYTjc0t2XepkSR7eNt+9QDjgqxF0iw0LxhVeTD+jcbx8t7GgUUfyVhr555ARn g5CcPPrdckWqmO1cYwGenJSY+7X6uaWDgJ04fDaRVZCFJycO74s34vWfI3IXd+tp bv+X4F1p404VRCNfEfaa5gn+LVY7uQ== =sURo -----END PGP SIGNATURE-----