-----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-jenkins-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-jenkins-14.1-jessie-amd64-openstack.tar.gz 0d98a8bedb040f1e0c17be23063f197d $ sha1sum turnkey-jenkins-14.1-jessie-amd64-openstack.tar.gz 73855c9555e77dd7faae5b051ddeca7fb0588bc5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnzAAoJEIXCXpWhbrlNmZgIAIPqihiyOtn9DrtHuN3fiJot c4prHDsxoBVBpMMwOi3LhosuiwKpuWehj1pUTy0098nYcyLJAgl2lsYzXVqFAjCZ iXcU+lh/F0/snxLdB1HadXQG32k7seZGPhnk9F1xb40ws5IZ/RmxTjaLk5K2oH/2 zBuVdN69M7gefCxklVOqC7u7fBXee6HTt1/kFDIg3NQNOlvNgBOkZ/GmekN9d1q9 cYGU3FZn5AZSeEu0PsIB/AlcsPipBceA56/zDx/pt2eFGNo2td8xxLaOhGgOnAP6 a9d2h9vYKkGxyUwAkiQf2I/SummkQZkmIsP2uSVDATb4ikMNWDi+Jr+UiZlQg4w= =jBjn -----END PGP SIGNATURE-----