-----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-sugarcrm-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-sugarcrm-14.1-jessie-amd64-vmdk.zip 8e8fe8f23e870b02cf9543cbfafdd8c0 $ sha1sum turnkey-sugarcrm-14.1-jessie-amd64-vmdk.zip ba6abec31505c5c5cb80e24d58848085cf5925de -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn6AAoJEIXCXpWhbrlNktoH/jBg5uEyFCbXILVRvtQmiBY8 qutLSTwMvna1Hjc4ZVGSDwXjx5H6ZnZtlJilz4qWDOl86iDITizjOdbyh4cp0u5B oV/2OcH8wM/fELF+wY6tGmWYHQvfByGdlMX4xxfQDUyXLK0Z3GPEVtVRZu1Rx8Gi eQtf2DDLQbYOhi0JYyKU8TUwd0jwKIkrHKRmavwbeyrK7398SIEIvOVLk8VNA3EO aJF//mztydQ3y1cD119TDMvlVnUUlxPorttvfo53JNxLoC23edQs/hBeMDvvCqJa QNYyWb+g6toX7XSICh69RlzHsm3AudPhB2sLv05q6TMIG3QnE91x/a6isf10/rU= =YiAb -----END PGP SIGNATURE-----