nwztools/upgtools: rewrite keysig brute force search

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

1 files changed, 1 insertions, 1 deletions

diff --git a/utils/nwztools/upgtools/misc.h b/utils/nwztools/upgtools/misc.h
index 4e8294f1ee..96666a2eff 100644
--- a/utils/nwztools/upgtools/misc.h
+++ b/utils/nwztools/upgtools/misc.h
@@ -34,7 +34,7 @@
 
 typedef char color_t[];
 
-extern color_t OFF, GREY, RED, GREEN, YELLOW, BLUE, WHITE;
+extern color_t OFF, GREY, RED, GREEN, YELLOW, BLUE;
 void *xmalloc(size_t s);
 void color(color_t c);
 void enable_color(bool enable);