-----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-zurmo-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-zurmo-14.0-jessie-amd64.ova 6d468169070ed793fc1d16f91b67a80b $ sha1sum turnkey-zurmo-14.0-jessie-amd64.ova 226980757319e6dec8493c0a14a2f74cc7120637 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdbAAoJEIXCXpWhbrlNpiQH/3+0PVDYY74SIrdDjwKlu9B8 B5PrHP57+Y13whr7smNoBQGRIz3lm3Zkl7w2BKHip4zXsC8woDUxoMzSzfjyDDWU wKNS9x+P6fGeUEqq54uNP+f7CwnAneHMESMLRwfJvqz+L6D4nyjgP7AWLgTcmYLF 9JkDtGGFgnAkl/8fs88KoisShIUC961fobcgUxPp9C4BrP/UqzaFUxnU5dpFuTUt I4ZUQvra3wKcLBIxxHkDicWor7fkGYrFj1qQ+/gkk6Ip3m+pkbZoAtT/FxOSNLFP d5TD1kFjpAVWg4+e+HEacI7eCvndpGmnIUH/GU0GoHSQ6SedSs3Bk+ff/4GI0Ic= =HmIZ -----END PGP SIGNATURE-----