-----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-redmine_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-redmine_14.2-1_amd64.tar.gz 3803104210ee02e71ffedcffacb6961a3284c0b7d8eda3a4a2dadacd8fd74392 debian-8-turnkey-redmine_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-redmine_14.2-1_amd64.tar.gz 7ae76b0bb6838d84469f2c2eb9532d93dbc7c12ac2f845af8fde9e7c2aae9d9e36a803d7e192645b4648feaa74475373d87a254aec9aaa041495a29747e8ec40 debian-8-turnkey-redmine_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-redmine_14.2-1_amd64.tar.gz.hash debian-8-turnkey-redmine_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-redmine_14.2-1_amd64.tar.gz.hash debian-8-turnkey-redmine_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZeIKkAAoJEIXCXpWhbrlNBykH/37o0QXeiJGnr65+KUMivdyF zxC1tEFeNhb/adm1JIyMhLv4v2WLnSrFF5wVxbNcEmQulF0Lb4uNOWmF36GgtYYz es8cyNvZ1Iz7T/29MwSehtIDxzn3ted1SeLuQdPp7u4sZpRw5YYHT40aOjGaPn2O oMyLRsHwwAUehXboUNFufFfysgeBh282DnQC/Za5edUX83xqw5NABT3J76IvaFIl g9AM4qdchbNpttFQ5UbgfMi1DyT4r2jDNrhUayjji8h/url1wmjummVQWybrQAn2 R+12y2zkCTdFFOJASIZJ/L4OxBJotmIOGqjKxyqqjqztCL4NLmdZKfskZnhgsmA= =Nbqt -----END PGP SIGNATURE-----