-----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-moodle-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-moodle-14.1-jessie-amd64-vmdk.zip e434cd58bcbf95998bc92d6e9e5d7e9c $ sha1sum turnkey-moodle-14.1-jessie-amd64-vmdk.zip f18325915f289fbf95abf985033d985b9018e9e6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn2AAoJEIXCXpWhbrlN1OMIANRGZ2LB76Ad6c3innSBMxlk A0UCcgSctabqSXnKgR0DEE0EhlROLB2xacZWL6+LpB0sbOCNVk6FHJ9483YdTNrC t5sVl/Pyp6npJcP6GulFT40myUHFLUFtUmh8xKvJ0HKsqkulbQWmo70QcSQQttfO JivqErS9VXFu2NQaQmbq/zICdlO2PVl2yiW+wOyR4JV9BJGf1iY2YqsLlQUrlz+b NW1vUacAgWI74s/X90v43YVrpDT+/YZ8pl+HWMofP29qo85fshTxfPdQA1leZxQQ zEcVbeC72l4ourUSiOzRR/m4s4fiOr0y7yYY2Y9AuFRM8zEsBoxtYbEAwOJiMEY= =Z+nP -----END PGP SIGNATURE-----