-----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-pligg-14.1-jessie-amd64-openstack.tar.gz.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-pligg-14.1-jessie-amd64-openstack.tar.gz 236db1a369415a795001726cc2958f62 $ sha1sum turnkey-pligg-14.1-jessie-amd64-openstack.tar.gz f4a061834cde86d3427fe7fe7dd9e1249d9daa5b -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn4AAoJEIXCXpWhbrlNSMAIALnyRtE0u/goTRJcsMHviY65 Zjr9TqJUWcjBkxh6KdbyZLBYe3KpjQTJZ5TzwanfxSNO3S+0XP98ShFuClqQEKWa funyrBpZXgCPv2+AnGboH5HLcJAuatcvmI2RZeDBcv9Pcq/Iy2yGAkM4gMZIcbC7 5JYuHSGklKgKzT5Ktn6nDozsjjxBHZ77Do5GkgOzHvhS66yTZcjuBxRijyilXvAw pQP+hiBN+2eCv1yf2A58KK5wx7WUILmTeKnKb6HNOMrp0p8TgSjdSHJpG3FKLYjG h6K7Hkge5AT4Ngr3RzUs3C6keBgJG09wqSpAzxu7pyOZ3RbIMXxCbdkBBTVUM4c= =75No -----END PGP SIGNATURE-----