-----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-couchdb-14.0-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-couchdb-14.0-jessie-amd64-xen.tar.bz2 a1e24fe67612b6e3cf147f4b1c7cc03d $ sha1sum turnkey-couchdb-14.0-jessie-amd64-xen.tar.bz2 ec8a9ec0bd3639b785f695d0b589676d831a7db8 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiAAAoJEIXCXpWhbrlNJbYIAKOjqVrkSrmNaElcraaSkMx8 dftYWsGpi5T8011RqzhpkYIb50uiRuRDbm637YeoTOdF0bel6xmkr2oBF61baNvU ExwkgwgmpkX791DMqNpalyJEfPgX4zFqBgUkoTq6pJm/a8My+s9BpbljOCTpxE6h VAqOPho15mi5h/ZGHQ+y9oaa301YIoEtPPjVlkUhkh7vJItkQCTPMRCa9AuYp26c ud6oBHaRnkuARsN1Iua9Zc+TJcfv2hLW2c10QfgZEnMDTNHqs8CsllWPkCG3ktMT Uuxi81XmfFRYWo2i94FoLD9wfZGgWMY5s1/nEjLa0Ig5ZYdhJRf8xe9xlWjta/U= =EzGZ -----END PGP SIGNATURE-----