-----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-concrete5-14.0-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-concrete5-14.0-jessie-amd64-openstack.tar.gz 69261450b39ad4a904abd8455a5fb316 $ sha1sum turnkey-concrete5-14.0-jessie-amd64-openstack.tar.gz fb75113321324b2e920fe4d9a37c3711fd0a2464 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG8AAoJEIXCXpWhbrlNyL8IAMnzcbG1Q1cJlnBxMD3GYME2 0ZwtwuSFLaKhMOEvc+0O8Fb+7zV6q/HytzPhJ5yWMVxILdnTuu9G5LRXDLjB1hIL LQlcUrqSmlaRtjtkscZDbVjtuZmhVdkyfkTSB/UYY5iWKA9RyEUEeRVo3S1LtNzE 8XgfHocY5VAveL7QjOfa3pHgrWM0nCRfNhLJgidaalaW2SfcwaiOyyvRyfbe+5tn jdO493TxrebHMG3AGKpVnDaM2LC0mLnOFRdse3ijwyF39aWPVTQrtlDXGeiQu4LZ jx17H9FCIa2+VMY9u/CcFar7puLKAB2jtfoDIvcTp1RIXaK95DpoX8/V1JHXoIA= =E9fA -----END PGP SIGNATURE-----