-----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-9-turnkey-redmine_15.1-1_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-9-turnkey-redmine_15.1-1_amd64.tar.gz 29a569e231f11d9eb493bc80a8d3de1feb707ed38688cd3af0f1a3cefab56c4d debian-9-turnkey-redmine_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-redmine_15.1-1_amd64.tar.gz dd8b65d8eddefe6f570587a2c93423b4a42896cb0e37e318ca7f28f815e88f25430bd315a8d1e7a17720e2b6ff269a808e46a9b34f86f50562a302ebb65c52cc debian-9-turnkey-redmine_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-redmine_15.1-1_amd64.tar.gz.hash debian-9-turnkey-redmine_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-redmine_15.1-1_amd64.tar.gz.hash debian-9-turnkey-redmine_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phIACgkQhcJelaFu uU29DwgA3LsSDfgHID4Wzwrs0jBbs5bly4QnRcyZyO7p/JYefma1imV8vvN39szX SA+rlW8TrWKtGo832W12pdBbS7XiPwLWGcx4njDRcQrwsU6rdMHsfwNrTLocASTA DGIX/m0MBJ+F0t1YMRxVPmUzqJlcMgZjRyq3YYaEKojrCJSfWUAs9udducdLVZaT hAydI/AsjojR9kwho7cb7uK7FYSPG3/AJPmtb2gy3i2urRSbk9qxU2P3nU1y39DE PR22mRUoJmOZW2YAkDaTrKBWp0kF8n1F32stI+pWYhuaJjisVGmrKTKzOYk6tE6r HF+sXBZ9wJv1OmDVtdzcBM2y5tBm8g== =+Nhr -----END PGP SIGNATURE-----