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-tomcat-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:53:40 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 75dc84359850782fa0557a22692f7125374277a1 * md5sum 8ba672e8e766d43a3eca09c753c71fba 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) iQEcBAABAgAGBQJSc3oaAAoJEIXCXpWhbrlN0VIIAJuiOmke5NcaelEY+XuWEFR0 La4i/X/2Y3ka2Hm0hJdXAFGlQWzils21p4BWZDqKzt/4TEyt8NUNfCTN8MDHJSQw kjdFeafGv1Z/3YVA7UJuu+FZ61FxPy3zXt9o06udIUGIyfDEIyOxsFuMTYJGmWRJ acZ0qELg2cOTAQAsPUc0V9qQzYOuiqiHcu+kchi2LACpTzzI981myugDF/4yMXJ8 PJQwpoUXloV/YATOp/hHw5tDyz2ORtETiE67h9KeX5r9Y3gIU7g2aUClLD/9/VW5 rKFy0CoafaMFR2nh0W55LuOqfsNctUJ2M5qVpoFcZsOEgTR8f3TmO3QOSNIDyQE= =QAt9 -----END PGP SIGNATURE-----