""" ******************************************************************************* * Ledger Blue * (c) 2016 Ledger * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************** """ import argparse def get_argparser(): parser = argparse.ArgumentParser(description="Calculate an application hash from the application's hex file.") parser.add_argument("--hex", help="The application hex file to be hashed") return parser def auto_int(x): return int(x, 0) if __name__ == '__main__': from .hexParser import IntelHexParser from .hexParser import IntelHexPrinter import hashlib import binascii args = get_argparser().parse_args() if args.hex == None: raise Exception("Missing hex filename to hash") # parse parser = IntelHexParser(args.hex) # prepare data m = hashlib.sha256() # consider areas are ordered by ascending address and non-overlaped for a in parser.getAreas(): m.update(a.data) dataToSign = m.digest() print(dataToSign.encode('hex'))