-----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-projectpier-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-projectpier-14.0-jessie-amd64-openstack.tar.gz 30a130d37be7e2342f6d05794fa031cd $ sha1sum turnkey-projectpier-14.0-jessie-amd64-openstack.tar.gz 7543a5953d04b0bcc988e8e9ca64d01bb24b5045 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG/AAoJEIXCXpWhbrlNKK8H/1RWyyaackG7vBz2g14iP8Wr zEFf8PB4J1m4TRV6S2V/jiuQ0ovdsE4hnIoayT7JtQY1PfiOmonSaWFA+PfcE3RP AQeZU82ORtp/MBwzYXBGDpR2wIrKeSuhDqc4O3WXIuQ1E9jCV0jLvxj41jJvP5C0 hcrSnMU9xPrfsOAUJgtjeAYHOoIG3xhs+R2UOeG8bSWo389eIgDw/hypQbccWWo4 Modst5bwBhyFsqPMGn9FFsZZu/Q6UUWaIhnNtt7+giqKGE2LEvGaZv2ftSXwPtO6 HJancVqRUWCK4NQhXf/3YGSYwTGflFUqXFMHNIIJL5HPbWoMr6pg4ZG3lO5joz0= =9yL+ -----END PGP SIGNATURE-----