-----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-jenkins-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-jenkins-16.0-buster-amd64.iso 267f0fc567dbfb313b9719c2ce2ba0f96862970da41dcc13569a48a307c1e076 turnkey-jenkins-16.0-buster-amd64.iso $ sha512sum turnkey-jenkins-16.0-buster-amd64.iso 7e5b0e0b7017694e9802b969b59ad9b914dbfe2a82b696ec4e9ef1aa0e02ba9a20df83733d11bb1fb1206f3f1aea10af5eee86fec870695ad7b0c633e07d81aa turnkey-jenkins-16.0-buster-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-jenkins-16.0-buster-amd64.iso.hash turnkey-jenkins-16.0-buster-amd64.iso: OK $ sha512sum -c turnkey-jenkins-16.0-buster-amd64.iso.hash turnkey-jenkins-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----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAl8z2u8ACgkQrF6wBJPl vBwoWw//S8IZr5hV0X3z4Dx4Pq9fNiLewGGnjIsNCLk3liO+D9M1/T+/uJXJ0Px6 KqtAA7/9H8TIW1V4Bgch0Rt+RYZaDwErR3pCMgAjebnM/EJcydOqTj/1E0gjQHOD bxTCM66S+Dp7sKlozd6kSpE1aesFCXF5ZxNrmoQnch3DK8rpPRiT8lLJbRq/9SzK Z+/9TnmW7v4Tglz1Sa9Ivr5zNFEX8PSUSqJgXsPodzzi6X6Do8f8U6UNSaTUQ/vV QPLslcr2zPI3cr6PYCub4QR3O78ohtIZDIQZ+Fvmnz/K3/rAkuJZ8gbJvhX/T7b+ mcIuflfBtt6oGftbvNE/08I6KBJxbrvxF/uPHFWIEeLdQEGro4S9mN8cmx1ykb3t p5O7XEU1fwvomCVlibo9TcrfAZXFqCqdSqHKY5CKzxrYjOAwo4/R0sK6z/sn7+k1 2LXEeRq9qx2WsXzbD4prRv1GwnOTkl88efH2EyQIB7BjqwHaySx4Ck4H0Fo0pCWq f4a0zt2ohEjgQeAvI6gBBqSH0ur877XkkaPkrismjZG3IdZ1L1pwpiHT8o3uqb77 HbhBQEUGl0V62wuwGlnKR6bvcftl99mddBJ87H8BEVSkxqgdxIH5l4OUsfDa2Yi4 UdyqSnAphxqildEnF1KNuz3ab3OW+vR1cvJ9IY5vE2ortBzHD28= =vLYY -----END PGP SIGNATURE-----