-----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-tomcat-apache-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-tomcat-apache-14.1-jessie-amd64-openstack.tar.gz db73dfb8f649b45854587959eda16698 $ sha1sum turnkey-tomcat-apache-14.1-jessie-amd64-openstack.tar.gz 073c2578ccea1cceeb1996700dcdc0b2afa7d082 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn7AAoJEIXCXpWhbrlNOBkH+wVnaXGZfTGSm6elUQoYD2sX qeDhEfM/JiwjfmFUpVWVtuIi5RN+2raQMf5uRlzM/qNSEbaMX8IyTZK5OC6pjeyM PCOvmqUi3Ib22D/xD08SRna+3Lsd6mYp2SsvU72FmTul4C7SKOwHGquqS7xfIi8I ufKEMh5h8n1Sseb55d3K666c1g/8Rezp68xjkNmUVba4iwv4H+XO0GLPfoedcMi6 oHq3TAsFyel9Gt6tdsyZNGfq4Jgw+ZT2j5t5cEQas5zSAzznJsFQakdt7Mrkgg9P KYKu+F1di7sA04sjw3IUB6W9h22oOnorPnMXS7+kzHFye6ltkOYxb4rHymZ/Cvw= =K6wY -----END PGP SIGNATURE-----