-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-postgresql-14.1-jessie-amd64-vmdk.zip.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-postgresql-14.1-jessie-amd64-vmdk.zip cb5258816f4102fda0777415ea352dc0 $ sha1sum turnkey-postgresql-14.1-jessie-amd64-vmdk.zip de795c66eb555cac7c386100ca5faef6111cce3a -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn4AAoJEIXCXpWhbrlNMLcH/28y8kj9af4pNxdmawC9kyBD Dpn8VBBX30XByBgH1Yp1ZuF/bLN7C1GZSJMOGjYNmBbqHD+dIuKyNhMzSzoFEyIT pmP05aH1sfcT8gqbVJ4kU5M4UGVtCeftgtyAe5Gl4oLPBYlu8ih+7mH+J1WbBlSg Sn8kM+6M7XM1/eDs2hDHtvABGtYtpZ12Zf3ehMAqU3nnTH9XzGh3s1pYUw//rmBD qcEGz3MPMRxkViQXxFk2fGl1h+Atw+JXQFq95pydPyhVQrTLIOzqGVJ9Jnzah7tH IeK7BK88IB1nMNJYsrwg9JRF6vYuxyw4gZvlcttT37p1SvdjkAqyKmtaX5aHgeM= =sdAJ -----END PGP SIGNATURE-----