-----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-trac_15.1-1_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-trac_15.1-1_amd64.tar.gz 387594fdfa9d5ad454ce8ff166be56e3ecf039ebb0ff2082fb5d3a77b8530d23 debian-9-turnkey-trac_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-trac_15.1-1_amd64.tar.gz 6d2c803c5bd4c8ea3a5867b7f88ab0c0f931e0508f13fda4ae8f5b70d7a0b16c0834fd940f7cf86f2636f956eeecc2d9fdff5e1f0d6eb2879f3084f5ca27813a debian-9-turnkey-trac_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-trac_15.1-1_amd64.tar.gz.hash debian-9-turnkey-trac_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-trac_15.1-1_amd64.tar.gz.hash debian-9-turnkey-trac_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlzdEEMACgkQhcJelaFu uU30hAf+KHv+9sLFYOChgAd21UqtIyvDbLUQ3B9U3DR0AMi7SXZObE8WEU0ZkKu0 X29jkP59QFJPsnvdea1Daw5rioRgWAjgWCfRokUcS/DIkQSXyP/+7ObpiWk2kmxs WkPi8Tlk+X1WFeZN2E5c52PFg9eWE3DubTdfCtoNUHhlS5vCq5DueZ+2CUt53CkP URoZU8gSTqJ2Ey/L+YV8cEFRKk6NNPru8gQOaX8+dqnvAQ+zunAlfzisVW+nyXWV VGFVY5xTr9JRh/8q51sKZu9ZQqvR7pn/dZhcDbwInKed6c5EuAdCQexn2S/l+5m8 41ncvnJmcwOwWoQNlqg9qmUb3GktzA== =Uo5T -----END PGP SIGNATURE-----