-----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-twiki_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-twiki_14.2-1_amd64.tar.gz 31310930f302e7b493f604d2a1bb543b634b0ecc3b01694d2a4371d2e8645b71 debian-8-turnkey-twiki_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-twiki_14.2-1_amd64.tar.gz f3394c9f3b51fc390c25ffbfee95e7e360b76038e171673e7e8db2bed5c7f473e85ee3ca742882e32dc421c86121c87ece6556333e791e77a6c19a1454f12176 debian-8-turnkey-twiki_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-twiki_14.2-1_amd64.tar.gz.hash debian-8-turnkey-twiki_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-twiki_14.2-1_amd64.tar.gz.hash debian-8-turnkey-twiki_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZfb14AAoJEIXCXpWhbrlNr5cH/29758dnXXHeIS2B0Zq002Cf CWbdC57eBMppOKHS6Ew2a5Gl3ksF8pQKleIMNr8bp4akNQpyI+kOX7MdD2711c62 EQClDcQTnuiIIGwe/873qtLem3oP6ceneg7Lg8SH/6d6RBBqFb2006xvQCdHT9mE JXNeHE8eWOZot+VSvWs1LX012Iq1eyQPbi9AMWEylQrZfXVS25m+pdyoTWOMtg4A wNpVw28C9aZzhgURBkyHtJj2Yu8Xnb2+/HwpvXRphc/nAP2zzJ6fqm2yA9ad8TKl Y6gTxvqT2C5N/5NOlrWtt2gCvyaK/VXuKNAdRKqucGUJw/21tLuCIrNJfOajPbw= =8bnt -----END PGP SIGNATURE-----