-----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-mambo-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-mambo-14.0-jessie-amd64-openstack.tar.gz 73e7ffc001566cc652257e91257cda9f $ sha1sum turnkey-mambo-14.0-jessie-amd64-openstack.tar.gz 1ab9d27585745fcc4800a6775eb198761adf4340 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG9AAoJEIXCXpWhbrlND3gIAIuofLd8V/hmS924MkpXFWR2 CwmgEDh7iFzyTVQGwOR8l+53XExC9Bs/iJc6yafMr0Ulrh+I8RMr26qSyf7xI16k 3sY21rk8cKS9ha+v5sbuwlFjUh9ZAMDjwUyWMQxH3QLwofZDcVhbEOakCKbyr8en TSVRCKRGLIakZbr/TpitIpoLcIhjA49pdZUEP9HpMuyu9otFmU8jcQvfFPf8tCzK ArFVcr+cx7ad9SBI3tUL/jXhndtxPUPzEWxi27wyERb3hiRsdtTOT8a71Qezo5V8 1L7IKFW1tNw4j1DwbCGHoeVJbYj9t0kGpYPqcen3+gMSVahIKqmc8XD7kRBujiA= =bwJl -----END PGP SIGNATURE-----