-----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-cakephp-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-cakephp-14.1-jessie-amd64-openstack.tar.gz 103b867d837e2fb6a048b9b8d0b39f6b $ sha1sum turnkey-cakephp-14.1-jessie-amd64-openstack.tar.gz 040efa0bb9e71a07f5e6abd9e1cc1a9d8896ea82 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnwAAoJEIXCXpWhbrlN4agIAJnZEo+NR6wGVgcUiRu6r25n N19hqteLl6PG14EL1cNhkHhoKeudJh9AfXF0Z8NhLXR3RmDF9NL+2yrvCeNC0J+i gDN8YQxcwitjOxm32VUUHRa8NWd5x4wxAvUJXLOtFYUKxXrVUCIYAje8IFPjHvm9 Ofr+5xEAzyaZE2XbLUIb2IG0RnyuVCs2FRxs7LH2KY3gthwUVvjz3TFceSjXEmu9 ykj6PnA/QnD0KlguNpUo7oiSn+ARy9H3dWtRneMsVNLoNnSKozKySC6GspBLNJzD S8+fSmfm5/V8c7l2gfC0TPPNu+QHt23yjveALyZvmeGrTk6g8ubGBVlyk9jlxlw= =WiTh -----END PGP SIGNATURE-----