We already use Crypto++ for DES anyway, and using OpenSSL is not great because
of its incompatible licence.
Change-Id: I78771b84c1708795a0c0c30afa5bdfe4885dea4e
The new search has two new features:
- it takes advantage of the fact that DES keys are only 56-bit long (and not 64)
- it is now multithreaded
As a proof of concept, I ran it on the A10 series firmware upgrade and was able
to find the key in a few seconds using 4 threads. The search is still limited
to ascii hex passwords (seems to work on all devices I have tried thus far).
Change-Id: Ied080286d2bbdc493a6ceaecaaadba802b429666
