-----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-fileserver-14.0-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-fileserver-14.0-jessie-amd64-vmdk.zip e6d4c8c533472008c17d371484ee09fc $ sha1sum turnkey-fileserver-14.0-jessie-amd64-vmdk.zip 88f27a9ed599d3806feb5be39512fc0f67fcd1e8 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdWAAoJEIXCXpWhbrlNzH4IAJcvpth3xlZT37ASNxHEIXlA uhCwluMBECKf+M2WTW3zqC+ETdGXqr+3F88Wy/w/CTGDRJPykq/mZXhnzR1Bl59/ 4jyzsEFQAN/flxacICdxZNo+pix0QedYk7C3cNTwKTEbgiCRaQzD1bVpB4thnew6 PP4XtOf58GrTTfOXB1/enKpDJZaWLXsDKpDK1H102xdmlqqyV0BuvJfkToDjOqcA j0DnnRrb2QY5CHj2GxMiLnQbOwR/M3sFK5uCAny9E11PTwLdHg976gWS5Qvn3bVD D4/4+CY1Dsr/aigp5B34wNs+kBIWxTlt5iHdqgyHcN5XfSpdAaujMwlxc4hPp7U= =sVsi -----END PGP SIGNATURE-----