-----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-espocrm_15.2-1_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-9-turnkey-espocrm_15.2-1_amd64.tar.gz 55b6bf6e2a559a7f644717459b239439e1d5b683cf2e361ef4bb7164e906ac82 debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz $ sha512sum debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz 873edd31d573b9acec85f2c822721fb3daa16f1a1affcd0668ef1bf928900ea5d0893effe923601f89ddbcef3e5c547a343450f23463b7722b5970f28a02bb22 debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz.hash debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz.hash debian-9-turnkey-espocrm_15.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pg0ACgkQhcJelaFu uU0Rcgf/fY6hNiIvt7ACKJ55leMc6aOj/J99SrUDjVB0YqrmVrHYrL6Y2JLv8u1t MkbqTW51RNiI2P2QcOumOahBOVqeTjNQ3RjoIYyqWypY6uxD4gbAaW+PEodTuF7c axRZ4Z8CeMIT7xypYo0WEOqXPSKm33pxpbYaGXa2ipYLpmrHxELwEVN3MFbTWBsX 8WMGZqupyehksadFlJZBWITdgU0sGPiLenyr5GbeUZ5pf5d1O3qFM2T8oWfcxfRi xEjPn1SkJaiHkzRcqHa6BjIA0RNEwE4nul+n8Ml6uPL3frI2Yr1pd/RosD8qWWOC kJUS+LlJSxADoswYghQzV/8DtlTfqA== =0427 -----END PGP SIGNATURE-----