This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --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-osqa-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:17:59 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum d528efbfc51d8aa274df2ce67570afe723fa8c9c * md5sum 6fc495b602d006249d9d0832ad16f46b You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJQM7SrAAoJEIXCXpWhbrlN+zsH/R2L/EdS4r6jVp01REGbf7kz 7w57uVPKvxu+LDXVN01NNceETDCSUJHN+bCv5xFOIVMFvYKAmWLvaFMUJ3LhwEqk 704B+P25K5kYAg3OFycv3u0yrwNk+gN/BaHaGyiaGmNXVU1Q0SnCFr+HbLy/Wf3T JUfHBbIicOIaBFFbPRGg+K+ZUgZS3Wpdkc4aXkq+cab1wxv7SVvljYb/dkU1xgZw DRK6ek2EiB37eSE+mmq9/JM9X01lYc3cvVvQe8l4KVhtszcxq9V9g32UrRSirBp9 fMbblBECloZzVX3MDm/2RI3D3SjIm2EEH5Ngakb3FOaamdkH5wQcbDEC7ofsDm8= =tOi2 -----END PGP SIGNATURE-----