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-icescrum-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 16:31:51 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 060e9467c58c3ed135413e30b57df85590792857 * md5sum b5e7cfa5509b885cc060f52d5f64da16 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXW3lAAoJEIXCXpWhbrlNjOIIAIp9RQk8/I2RjdjXVtiadPxR YvvIm0E+HMnmyjZKdd7oUpG5LDGcHRisEE10MKFUPPWUY772/ucOYH28Bwz/tkfP 79sVyxkkGdiEsypvBKMr8+CKh/BZ0lRMBCLhtwDQuCvnnav5NrRB9HtyIldZAxxi RSb7VQKMU/u5qHNTm4Lr9Z9dvs7OaAXXDaU2M6DmpkghECCdfeGCvxCG3T5QO5Kj HbR45d3eyCF9HbbLCduvR+CGSdp2f94+vGcV57NWWhnliP8rIrxwxbgXSkcUKbPR 0rkq7TxpMSwUibH38ZYgmLg+FT0pE2K6lKnVEX7+CbDNnoMfU/FyRUyhmN8sbyY= =Yvxw -----END PGP SIGNATURE-----