-----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 debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz.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 debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz 2f646e651fedd611fcfc215d242f081a97d8f8a5af5390c7766d3bc4de7ae1c4 debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz $ sha512sum debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz 0346fed92bf3077dd0ecf24901ae450e399f2e65fc827a514b990abeb07cfa3f1327d585d2441fb2316d40da27e475d00e8a4a411c704c3eee1b2478cba55878 debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz.hash debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz.hash debian-9-turnkey-gitlab_15.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlyZ3PcACgkQhcJelaFu uU0sIAf/XssIICGnZNjc2N7ogub/cGyN2+nXkHdRcv9QBpRjDUaZk3Do+aexhVJA c+vBZvT2oZItqF8j+BTlkxdlsJ0OmARp0oDgWord7vsy/ZVeYiSejsnbjoJOe4Jg j01j7GL+GVCJjOTzFmK9JW0oa1E8DFUVCOekBXXXEeSEOM8nT//L9XyAE/zeDbyF TZatRA++tZzWT0xJ5R2+AnE8MqFHO7+l8twaZlTHqqSEvUKusfWsj/tiDMs0dmL1 NEV5QHzjkuLgN+gHhuAGyVYBffcke48QOqGLQukTxLz8/BsGAKIXIXYyz1AinzEe gubFXojaPDyO62KJLi4lP11wME/ZQA== =tNQi -----END PGP SIGNATURE-----