-----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-jenkins_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-jenkins_14.2-1_amd64.tar.gz cc1beedbe257dd41bf5c013d4e2bc8fbf6156548e06cff7a83669f299cdcc8e4 debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz 6bfc839bb416148c6f64f56188150a2474736b9453a385990267a03abd0af649aa91755937a5752beaab54e0f4859b04127c73abf1a9a8517da0f732041f3f12 debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz.hash debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz.hash debian-8-turnkey-jenkins_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZfb14AAoJEIXCXpWhbrlNrSsH/0n4ruShSG1041BUkyzwQkbm m7GmYSlr0TKT77pjL221rod28rFjXv5h5+deHmK+A+wLXLsx8WEDScv/TsyH/w9e QiF++PnY7b2WFf29coI2eXL70G5/kqSfXHuADjMCgEjuN1QhqpFoFEOi8cUiX/gS YFa7Ee3Qqc111s0isiRezKyApwvtp6hLMpZCbEG3qHF/JvDycnojdijmU1D0zqVc enLLvOPOYYt2Qoexf4VMbFE/9nNR9ufSngoU6JV728seM4hIB2oSRdEt76FhOxM2 2jZa/beHlkhoEGZ8Frd5CkVJh93g739Y3PY/QRrkyTdT+5Du3LMMNBzg01nhV6w= =Jh3A -----END PGP SIGNATURE-----