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, 0 insertions, 1 deletions

diff --git a/utils/nwztools/upgtools/misc.c b/utils/nwztools/upgtools/misc.c
index 00832cd585..108235e7fd 100644
--- a/utils/nwztools/upgtools/misc.c
+++ b/utils/nwztools/upgtools/misc.c
@@ -31,7 +31,6 @@ char RED[] = { 0x1b, 0x5b, 0x31, 0x3b, '3', '1', 0x6d, '\0' };
 char GREEN[] = { 0x1b, 0x5b, 0x31, 0x3b, '3', '2', 0x6d, '\0' };
 char YELLOW[] = { 0x1b, 0x5b, 0x31, 0x3b, '3', '3', 0x6d, '\0' };
 char BLUE[] = { 0x1b, 0x5b, 0x31, 0x3b, '3', '4', 0x6d, '\0' };
-char WHITE[] = { 0x1b, 0x5b, 0x31, 0x3b, '3', '7', 0x6d, '\0' };
 
 static bool g_color_enable = true;