-----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-moodle_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-moodle_14.2-1_amd64.tar.gz 2f728501c601e96800f0fdc83bd22e72d45098368a45a9ecb39b22197fcc734d debian-8-turnkey-moodle_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-moodle_14.2-1_amd64.tar.gz 1c2f8fb21231d6f04e4678141bd774cfc155c919ae033ac28b0930240cf4d489a07bbe73e26729f58f7fbfcc081b740aff8953bd710481fc4294adc8bb41d63a debian-8-turnkey-moodle_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-moodle_14.2-1_amd64.tar.gz.hash debian-8-turnkey-moodle_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-moodle_14.2-1_amd64.tar.gz.hash debian-8-turnkey-moodle_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZBxkuAAoJEIXCXpWhbrlN3WUIAM6uEoo8Ctyywb6UrnBmhd0P xwMtT7wdVI/rnTyPREvdcKgW/mJLxNxkxVOHG+9Na7OckUGaa6mg44pGUwG9cHzt +tslISwpCFuFJ3dGi/uT5mCsx9EEeYKrKy69IbITdQkLrMAN9p6LVt3/e3e/UoL1 3dY+zeBvqbQp7Lcgwx0izO9bc/Wk4BdJUwGzT5qQZW5KxX4S0G6/qXsbwSHrBZDA WMlXZMkmjyY/PZj83TP8s1Yzd30HuoVQ2Ts1EiNR9B1alTHaXo2zcDNUnMAw8EKw LICpKVgPe8XzGkFJDIslmdm3qc7Lwfwdd6lw6vWfTCNOSITwwlPne+LKbNP+o5Q= =FOLi -----END PGP SIGNATURE-----