WSS-177 added programatic support for encryption using a symmetric key, and WSS-179 did the same for signature. This task involves supporting this functionality in configuration (in so far as it's possible at all).
Only fixing this on trunk as it involves changing the behaviour of "Crypto" loading in WSHandler on the 1_5_x-fixes branch, which I'd rather not do.
I am on vacation so didn't test this bug fix till now.
I will test this fix next week..
Sorry for delay