outFolder = sys.argv[2] if len(sys.argv) >= 3 else defOutFolder
offestStr = sys.argv[3] if len(sys.argv) >= 4 else defOffet
sizeStr = sys.argv[4] if len(sys.argv) >= 5 else defSize
#hwKey = sys.argv[5] if len(sys.argv) >= 6 else defKey
offset = int(offestStr, 16)
size = int(sizeStr, 16)
# Create out directory
print("[i] Create output directory")
utils.createDirectory(outFolder)
# Get the key bank section and store it
outEncKeyBankFile = os.path.join(outFolder, 'key_bank.bin')
print("[i] Save mstar key bank to {}".format(outEncKeyBankFile))
utils.copyPart(mboot, outEncKeyBankFile, offset, size)
# Unpack the key bank to key bank structure
print("[i] Unpack key bank structure")
keyBankBytes = utils.loadPart(outEncKeyBankFile, 0, size)
keyBank = utils.unpackStructure(CUSTOMER_KEY_BANK, keyBankBytes)
if (DEBUG):
# Print all
print("[i] u8SecIdentify:\n{}".format(
utils.hexString(keyBank.customer.u8SecIdentify)))
print("[i] u32Num: 0x{:08x}".format(keyBank.customer.info.u32Num))
print("[i] u32Size: 0x{:08x}".format(keyBank.customer.info.u32Size))
print("[i] u8Signature:\n{}".format(
utils.hexString(keyBank.customer.u8Signature)))
quit()
if len(sys.argv) == 3:
outputDirectory = sys.argv[2]
else:
outputDirectory = 'unpacked'
# Create output directory
utils.createDirectory(outputDirectory)
# Find header script
# Header size is 16KB
# Non used part is filled by 0xFF
print("[i] Analizing header ...")
header = utils.loadPart(inputFile, 0, HEADER_SIZE)
utils.copyPart(inputFile, os.path.join(outputDirectory, "~header"), 0,
HEADER_SIZE)
offset = header.find('\xff'.encode(encoding='iso-8859-1'))
if offset != -1:
headerScript = header[:offset].decode()
headerScriptFound = True
if not headerScriptFound:
print("[!] Could not find header script!")
quit()
if DEBUG:
print(headerScript)
# Save the script
print("[i] Saving header script to " +