-----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-punbb-14.1-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-punbb-14.1-jessie-amd64.ova 05e553a3504b3c453b9954ce83206e17 $ sha1sum turnkey-punbb-14.1-jessie-amd64.ova 859f9e115b6dbaf2ffcc7b3801963422029a3e37 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn5AAoJEIXCXpWhbrlNFVUIAN/sJZWiwj3xcwZghFu5L1n8 98QJ678jrMyHoQnedE/vvpnKjYUmNNbu2mUi7nSpIWSaAVjXYwV8DVeKkQETmQZR rCCYchPSCi+QEd2I9P+Roayt/d8+DXAovSzO8ngROkS4i+Ukqs7OZV0gDaZWdbHU ue+4aEucIUCYjd3lzCDQANR56JfLkvK1eGWbPNWmHGUn4524PcP01HRIeEGE7kgP rqkz+xa55CCaWU2lbflkeTf9g/k4y6XCCsm9M7cinYSHPdRtdcOFv0FjcB2zXmWo OtD2ZjY0PYwgIwkFkMvt6TYDAk5mM05TwApPbWF0LqU3Z2jQ3s8N8Ywq/bb7Zhw= =0TNy -----END PGP SIGNATURE-----