No, I didn’t solve it all. I did most of it, though, and one of the remaining bits is, I think, a bug in their server. There seem to be a fair few bugs, or at least rough edges.
The starting point is http://canyoucrackit.co.uk/ — if it’s still up by the time you read this. If not, I made a copy.
Continue reading The GCHQ challenge, unpicked.
