I have an unofficial package for gnubik (for which I'm the upstream
maintainer) at http://darrington.wattle.id.au/deb . It's a couple of
versions behind right now.
I'm not a Debian developer and don't have the time to commit to being
one. However if some kind soul wants to import gnubik into the debian fold,
I'll gladly co-operate with him/her in keeping the upstream debian friendly.
J;