-----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-oscommerce-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-oscommerce-14.1-jessie-amd64-openstack.tar.gz 685d019c0c39391fc6eea255ffeabadc $ sha1sum turnkey-oscommerce-14.1-jessie-amd64-openstack.tar.gz 1ba9264258b85136c300da0b5aa95f5533b8730f -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn3AAoJEIXCXpWhbrlNYNMH/0J39BiclniXZ7jv8ueOK057 Pi7gBbZAlGQ3jLubwC6hluNg0CMfriVa1wdk7QQdHfBgtCozJdfFk4+zfEkLS23O mirDRn9fURHKa+TdRDB5KQkNhdtuTFVCuhNEPESYbOZhdc8glJiFTuRPdp2Ta63j GKIDR9M+J8PiB7Y35cHROXQ75G/LMCpcBnNQmTRTE9BuA/bUrvl182iMkOdf6yGH 79gHjmAfOVh1vLckS29HIEjIFOskkiuNEDQ6PA5dgCu9eTpEnYKHs2BcM7P/t5i9 XgNaL7Bev4uhoMt/inaAjLpJ0CUOGrHC2XcWtwGG37B/Lpa6ogS04TzzhJamPwM= =sKgc -----END PGP SIGNATURE-----