-----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-plone-14.0-jessie-amd64-xen.tar.bz2.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-plone-14.0-jessie-amd64-xen.tar.bz2 731baaecea5177960981337c4b7a261c $ sha1sum turnkey-plone-14.0-jessie-amd64-xen.tar.bz2 cb341c7b5e9d50fbd3b8072743082c114f4b7567 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiCAAoJEIXCXpWhbrlNaBAH/3qEoUeBieT4mBKjW8ixXFZA 7Z4WEzbne7iXP0uYFyBnQ8TiONaogN7Pgp/uNbxARYYavy0XsRt02UWCEz69aCJR Wzu41GqXJJb3IpZe7B4wQRL96+cv1+CKArYPFJjQvGGwvixeFGD9X76DzBt26AwR ostaZUvV0pv/Yps3YU67x4hBNJ8uDkKpsyIZEm+n6WVRYJSSd08xTj5tJznlNDM8 29b9YRL8wiRTC0fpQtVFxuuuxTjOWcpAuOQvdWXpgrX8c0rCbfyRWpfHZOschCno ctkdlxj4V/BrB2c0UtD5YvWDTNpzz4YYMWm8Jr0fgXza01caRTCF0ZRLiwUhBu4= =b/n5 -----END PGP SIGNATURE-----