des typo fix - how did we get here?

Author: lolololol

emu/README.md

@@ -3,3 +3,14 @@
 This folder contains experiments for software-emulated side channel, using Ledger-Donjon's Rainbow framework. The example executable is DES. You can compile this with:
 
 arm-none-eabi-gcc -nostdlib -o des.elf des.c
+
+Now use des_loader.py (or equivalent) to generate traces. You need to modify:
+
+- Where the data lives:
+  - KEY_ADDR
+  - DATA_ADDR
+  - OUT_ADDR
+- Where the key function is:
+  - DODES_START
+  - DODES_END
+

emu/des_loader.py

@@ -35,11 +35,11 @@
 cs = None
 
 KEY_ADDR = 0x18ce8
-DATA_ADDR = 0x18cd0
+DATA_ADDR = 0x18cd8
 OUT_ADDR = 0x18ce0
 
+DODES_START = 0x8954
 DODES_END = 0x8974   # WHOLE
-# DODES_END = 0x8668   # FIRSTROUND
 
 rand_key = np.array([0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88])
 key_str = " ".join(["%02x" % x for x in rand_key])
@@ -55,9 +55,10 @@
     rand_key = np.array([random.randint(0,0xFF) for i in range(0,8)],dtype=np.uint8)
     key_str = " ".join(["%02x" % x for x in rand_key])
     print("Key is %s" % key_str)
-  out_data = emu[DATA_ADDR:DATA_ADDR+8]
-  print("%s" % binascii.hexlify(out_data))
-  emu.start(0x8954 , DODES_END)
+  rand_input = np.array([random.randint(0,0xFF) for i in range(0,8)],dtype=np.uint8)
+  emu[DATA_ADDR] = bytes(rand_input[0:4])
+  emu[DATA_ADDR+4] = bytes(rand_input[4:8])
+  emu.start(DODES_START , DODES_END)
   new_trace = np.fromiter(map(lambda event: event["register"], emu.trace),dtype=np.float32)
   out_output = emu[OUT_ADDR:OUT_ADDR+8]
   if cs is None:

lib/sparkgap/attacks/DES_SboxOut_HW.py

@@ -70,7 +70,7 @@ def inv_permute(table,blk,default_char=2):
   return pt
 
 def mapToInteger(in_s,bits=6):
- x in_r = in_s[::-1]
+  in_r = in_s[::-1]
   out = 0
   for ix in range(0,bits):
     i = ix