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).
I am on vacation so didn't test this bug fix till now.
I will test this fix next week..
Sorry for delay
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.