-----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-concrete5-15.1-stretch-amd64-xen.tar.bz2.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-concrete5-15.1-stretch-amd64-xen.tar.bz2 dbe7fddbf87f4f817a9133b93cba5d55716a5e10a948dba3448af22555710902 turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2 $ sha512sum turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2 f966046801e471328423d47b4a884822f3d9dde252110db03517773d01372228cbecc30d1ebb00def5f15385d517c323ea94c8193e77cee07b5a8c2d17dd21bb turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2 Note, you can compare hashes automatically:: $ sha256sum -c turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2.hash turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2: OK $ sha512sum -c turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2.hash turnkey-concrete5-15.1-stretch-amd64-xen.tar.bz2: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phoACgkQhcJelaFu uU1hTwf9F9/yYfMzhFxthdxc8HbbChoXSp+1anyW/mrWKdO4rWTRssIJ8aBPRu9C ZGchnf5AFfJhGVqSAM5J6GYysiGlKLdQe5FDM/jv3ZqX3T/yM2DS0Kko3+CBLkHZ bJ9gLAjsnytw3gzdbUHRKx7/izhiEHB0iU5kcn23E6tcYhWjJll5UdY9B/jazo/W BrxpG7HSp1yttCgtJsvgM1rRXqoluU/drvAJ7bglZYosv4m+qNmpMp95eLNqCHs2 718uyaKB/2dH8xdRubZ2EbvLUIdRR55u6EhV3P5Rjr0Fa5NrbhkY25BK8J+rtd2k cl/035ezmUAiwYFJWhC6+W2aPwEJVg== =g6Fz -----END PGP SIGNATURE-----