-----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-typo3_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-typo3_14.2-1_amd64.tar.gz 8f4ea6ed64c270a045d64b0cab15cca81b6b5aaf8eca6f0e07ae987b441328f2 debian-8-turnkey-typo3_14.2-1_amd64.tar.gz $ sha512sum debian-8-turnkey-typo3_14.2-1_amd64.tar.gz 32e389f6b7e33ac3c314841cf9adc8a0528d856c8d49e7134f471189b52cf420dc4ec1ef5112f4b8fc821f8817e86279ff03238c90ab5c5b62eaeb199d4845d7 debian-8-turnkey-typo3_14.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-8-turnkey-typo3_14.2-1_amd64.tar.gz.hash debian-8-turnkey-typo3_14.2-1_amd64.tar.gz: OK $ sha512sum -c debian-8-turnkey-typo3_14.2-1_amd64.tar.gz.hash debian-8-turnkey-typo3_14.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZfb14AAoJEIXCXpWhbrlNe3sIAIqvU3yDd6eDO3MWpYzjis9+ pFBrBAx31A2gSvepcIy6K5mUtTC9lU8CbDpH95i0xZaqN0ddhtNEwJAE1zauWfn5 0NQP6DLWOv175UXuB1H66fmxt02BoORJt1SaYv5mGDtkPSdZwqBnLt1vqZUcANQU IbBXM8gIgtcu3niU84Ld7IWtzqgEamVEezLGrFesC+ga8fm8QICHwH3MJ1CcY/kJ 5cue+Sn9IVnfWxr3Wq+V3wm1K2VK04YYSwZPIWCgckq/w/sbRUCGq/PsDAhn9y2z GiEFgyg1c241qd1ZBtQnNKe4Pg6lUfeaIA+4LJNf6JhKMsx2ci4GIdQSFdMiMoE= =k4pF -----END PGP SIGNATURE-----