-----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-8-turnkey-collabtive_14.2-1_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-8-turnkey-collabtive_14.2-1_amd64.tar.gz 4ca0b2dd5e70d50898f6822637abcb23d6078a2ff1293e052e4d64987ce257ec debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz 62cbd231c4083e27d48c11a9b1d6ebcc0a6cf65bf68c636cda7113cedca603970459277edb02617c5bbdff2f03ac22422853dc598704f7f9726ab469e706af3c debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz.hash debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz.hash debian-8-turnkey-collabtive_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZBxkuAAoJEIXCXpWhbrlNVogH/jXIGJ/Nt4tjUmhT2M5BGM89 HifEMME6Kds7wB6AVjjasiCy6F/VtvAD67f51kmSX1e1xq3NfNeoOLV2MtvAuE/3 wpgsUc1Ue7r6VdUMtJ2Y5NmV+OxXLo8hbZWEnXd1gU2KkNThNh3F1HDqpOFT7kze MvZ808goYzccxacpZVuBUYsO/Z6wiksW/deowl6Dg2pzWE75uJ6PLymgxCeiE2hG obPNUqe3baZQwiX4IHKXWF0Fe0qO8RPAD05hPOU40O40N17t37afsnuBJpDAFcVU lSTzzIRaAyHy4sJSgsA370UHgrB56iJPF6F8T+hJC2JEyyI6sJ7VNgXWohvLpyg= =m7is -----END PGP SIGNATURE-----