-----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-14.0-jessie-amd64.ova.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-14.0-jessie-amd64.ova f179bd33f022789adf9707ecc5178856 $ sha1sum turnkey-postgresql-14.0-jessie-amd64.ova efa9dd21f697d700a71a49505a398b3371e16fbf -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdYAAoJEIXCXpWhbrlNn1YIANfisH+9ndbJJ46Lcw9IOoIK uaSqjGhlGv27UF3i96PnbX7+iG6KAGWu/wpqxHznD9H1xWVqK/yZP/uadEUqWuIz W4ypNGNwYAGqHV0I+1fDhjVKvqdVZfS6O00YxmX3YcqPPVoFfKohLMs854FEMqtT ylmge7ooyeHQQL3YjnVYx+7/OfknmBURLTv8TVnD/6KMgdhnL1WouiDUGjTIPJXZ Vh3POq3sa7bXr+GCJnIHS/t55AQYMXIChu3hC5i39fXja9YdbNCuDDTfm0VxMxtB ZQ0HFvWGrjiPnx+7pVsX1PSdbNOlP4Yo+li5jfMMu9tTO5Cw9bAES6LfN2PyeI0= =CrRn -----END PGP SIGNATURE-----