-----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 turnkey-redmine-14.2-jessie-amd64.iso.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 turnkey-redmine-14.2-jessie-amd64.iso 0003377b70fe2152c4f04830e4d3768d027935535fc4e8c4cb498cd131f1d747 turnkey-redmine-14.2-jessie-amd64.iso $ sha512sum turnkey-redmine-14.2-jessie-amd64.iso 9f7ec84cedbdf610498eebb48ef81396dffe2868de3e72401340be0ab412f8b50a4580a5661d5d0d7a3c8df9382e95e25eb726ad6e4bdf28f9f17f6ca7e9aedd turnkey-redmine-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-redmine-14.2-jessie-amd64.iso.hash turnkey-redmine-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-redmine-14.2-jessie-amd64.iso.hash turnkey-redmine-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZVQkpAAoJEIXCXpWhbrlNXmgH/2tReSk3pZ/0kmR5VZ8FUldt +cicR4s1chTMidkXBhD4zf1Dg9nA6YMPsxjPxUUUNd3G3Z3nV8KAs+0P+YAAD3yZ NA8IQCFm7KFQgPhHo/VBPeLmVS+gcoHrpL4qDBO/tnCR/5Df9ncJa8+SkKlWBWYX BTo16yCr3xoSdudrdsHqdaWRYSdM1+pwqf0LSkE5mYw20DbM7A39WjR17pOws/TU kiFiGwmo/kSNW5+OilVbwzh4u9E3SLQtj/Vg3rCU8SqJ+B95QSTNen/XqN+YKMvs 4oHF5Jv/oZEjrahSkdEhZFlv1JKrcFufXginnHHjQlIy8meD0Y+Gd4eBEDVywLY= =G9O1 -----END PGP SIGNATURE-----