-----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-roundup-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-roundup-14.0-jessie-amd64-openstack.tar.gz d703347e02051729a468e5911d7e3a78 $ sha1sum turnkey-roundup-14.0-jessie-amd64-openstack.tar.gz 973c3cdf0fe6bb29de7ce7ba99d5c1073c9cb77c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG/AAoJEIXCXpWhbrlNX+UH/A9Ai0YzD3FDpMop5QhonkhR iFfvAnnmck3UaYmcg7RbG6AAg89tcebUo4JbbxJW1gra3Gmnx7SJS+VB6oS/VyX9 B2k8jcfpw7UzFu6aiGhHxlSPzaRpPrIN5dkGrT4IsnRxEijOTPwlAGbbe3NoT+RN KGAphZFgRX/AovZPfj3ltpYE7DbNHcUnhCyZmEURG3owOocQNlpbT+VUDEkCO9F3 XBNhTKsKVCxpnAVPlQYSa28DKHhl8M+UT2gwx2NNsokT+M+9+0a2OwHcSBgPE3d7 Wb1XFLVgmTYQKmxz787FeymBTG0EnuodzKEYCbeS+/B2b1uqWOJC1x3UUJbLVbw= =8OcK -----END PGP SIGNATURE-----