-----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-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-nodejs-14.1-jessie-amd64-xen.tar.bz2 21510088f636da74ccbcfdf2a7308a39 $ sha1sum turnkey-nodejs-14.1-jessie-amd64-xen.tar.bz2 b0b9d1d904bd1cdd1b8a1257ad49bf9043848c9f -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn2AAoJEIXCXpWhbrlNh+kIAMYdgB4LlAKtHotiWNjRSPW2 XCAi9FQlt6iG9RLAD5VQM05i3e6yoPRNwvjzQU/o8zl+UlrYw/SGL6+ysFuoIKb1 0q5AHSC5Hwc3/lKNYg9l0fq0WpfwvLcnAjOvx39AU+b5mGzq71DFrwC4yYukBr7W C/j9S35gYdAUAP87OXsPh2gIio/qVFqzRkZ4GUEfVuo6WKrU4O2YbzzbSICH5TcZ 9bjP2naro9Fy/tN9ISD0b6eG+AiS+6HxMyB2DbW4dgUouuxgo4nzdYKh87ePdv+5 EBwyeA68tND5KWOV2xVO/bo7yWzVNFKb1ghpPfTlYeodSoZrBaNLCg4EL5ldxg0= =y9xq -----END PGP SIGNATURE-----