-----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-roundup-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-roundup-15.2-stretch-amd64.iso f3c8d1ba28ccb0d71b8a867cce320a5d30e533da85fb3743720dacb064222d83 turnkey-roundup-15.2-stretch-amd64.iso $ sha512sum turnkey-roundup-15.2-stretch-amd64.iso 835d9f51bd72aeb5446b4a41463100ee673a4f50088489c0ff37b48dbe7dc9068ff475bb96925e647f392a860d348f66afe9fa450d2484a02369c2f8812d1496 turnkey-roundup-15.2-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-roundup-15.2-stretch-amd64.iso.hash turnkey-roundup-15.2-stretch-amd64.iso: OK $ sha512sum -c turnkey-roundup-15.2-stretch-amd64.iso.hash turnkey-roundup-15.2-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlxhNwIACgkQhcJelaFu uU3LxAf/TW3SG1r6UTj+jmTDnxKnWo+zfSoUzhelWavoSvjAxXqB1+nyP9Dq9YFo Vkxyu0Pn+tGKG+nQUSFh+j4rB8DALSlVMSECorAnDZUiZ8lX22lpBLAIBpY0/3nC 3T/PVCABYJvuCdYU1nryaGRfHiADpTwwfbVP43zVddziURbN/SY+riUvFud1JAVT KjoaLrA93WWn/6ogkLeuIBxfjd5+kXLsaH7PLoFFNBf2WjphmYOWI3P32XexUND+ wmv8QGGMTi6CfKvxiIcSC77AM1Qt/0KuuIO9CNZlW7btTTPWKf6EZUa5oaZ9eFoq 7cY/zWpiaEx/YJk/neBQPTYGiUW0HA== =1xmi -----END PGP SIGNATURE-----