-----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-punbb-14.0-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-punbb-14.0-jessie-amd64-openstack.tar.gz bb8f4552c5e4d4471d3065b40064a9c9 $ sha1sum turnkey-punbb-14.0-jessie-amd64-openstack.tar.gz d0a133e8cf377495d6ce03f2e2427c61541ff65b -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG/AAoJEIXCXpWhbrlN80oH/jpjAj/MPgB/YFt5RcINVqXp kcL+IePiaUVzgBXC3yEUkhUlHQTEb/KPbNC6c3v8/wMZTIExLOFFrfqX5AOznlpV SSjeLQAQ/wLxnYsSg9Z0f2LM1TrnPatSWCanla/3716kUp85px1t5hXvm7yeoVAZ tBB9BXQCO6vO8xgyKkEPArDuqpcX8Hghn60lm4eRBCojJbqSWpJcfpN7YfWGl7m6 2h0wrNgWKG3ffOlgKV2ck6TrceXfv7BpbUJ0aikMVIVyL4f7TrpFVVV2ID0CctRX TcMZXlKAnmlkSEkPvHaBeGvKsgbWtXJPaTU8CEx8fd/1qvY53HT7R9XYq9bjDrQ= =dMWM -----END PGP SIGNATURE-----