-----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-nodejs-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-nodejs-14.1-jessie-amd64-openstack.tar.gz fd753b6396ffc78653db4cf8612509e8 $ sha1sum turnkey-nodejs-14.1-jessie-amd64-openstack.tar.gz ed0cfe58d93db8a69f0c214c991660bae64a59e8 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn2AAoJEIXCXpWhbrlNmaUH/2425R+NQATM6PAJPpF0Q+f5 JBgIyTpXusxDnsC5co2yWL+kYWegepYBWVhbvByJ82zb4I0OLZPp6wZUwFUmIpoB 8Z+u/FTa0CGD7oFmDTZnS81ECWsiP/3kX4/cVaf0ykVAk4LE0e56COe9ekYxPe92 UfthykQtx0hhk9xGenJ9VDikD77C0zpvSmsbsNy8Zi2liKyUDu+mTZNOfjjuCqkD UwzNzLJ9liaBWnV6mL37CdLtL9NnU3AiV8vBr8CV9s2kZmmK3v9H+7SwmZC67+gI ZmB69rjmi4cNDOLs1Yd1kwSMoFApcwc/7p1a6yCRPSg2af2xJ+kGvHB3jvjXQhM= =iptA -----END PGP SIGNATURE-----