Before you use any iso image from our project, we recommend that you verify it using our PGP key. Follow these two steps if you are not used to pgp (using gpg).
You first need to import our public key:
wget http://www.redwall-firewall.com/redwall/REDWALL-GPG-KEY.asc
gpg --import REDWALL-GPG-KEY.asc
gpg --verify isofile.iso.sig isofile.iso
gpg: Signature made Wed 02 Feb 2011 02:47:07 PM CET using RSA key ID 6346D271
gpg: Good signature from "redwall firewall <(mailaddress removed)>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: 2C52 69BA 561A 3421 ECE1 F152 DFD5 CE82 6346 D271
2C52 69BA 561A 3421 ECE1 F152 DFD5 CE82 6346 D271