-----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-mumble_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-mumble_14.2-1_amd64.tar.gz 5eaecc29d9c4dd0e909e684826ed2b5a0b3e31ed6e78cb9a6424912b3f3db16e debian-8-turnkey-mumble_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-mumble_14.2-1_amd64.tar.gz dcc02cf8d07b89bef9d49bb135c290cb1ce5be9c2de09c7d258fcfb0a94fc9428dd06697833da6c67b5620bde6d940942790626175d98d207a5e80d859118c43 debian-8-turnkey-mumble_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-mumble_14.2-1_amd64.tar.gz.hash debian-8-turnkey-mumble_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-mumble_14.2-1_amd64.tar.gz.hash debian-8-turnkey-mumble_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZNo90AAoJEIXCXpWhbrlNuwEH/AtaiQsqB/DmbfS4Vy1pFtII s5hSEuxOy/OUaIVZnM96sTGS7BGNIPG4S8T8hIoPKpsTmyBH7NV4TFqyrSCIjTEE GaBCY9Fmek34Sqs4QqkNTZAjyYEDlPmZlcMUHMu3uyCEpeG6tUN1551VqjpRzGda U0O8/YWu72GC//s41b8RXWYTHP3mepnA+3c5eU5S3QUJ/Dw2XrZ/NyH/KisRAtSS vN/1eyTILUcab2FNwCJlqzLrHKT2Bdur6B7YC8RDZPvPsfVZecnMilGCE2d62gae W5ntiR2c+L6S2Y6E7eg1I4rsz+F+zxV04BglgDIHTy5OH9UPa/VPQeZG3AkqHNk= =ou4/ -----END PGP SIGNATURE-----