dvm.py 文件源码

def fix_checksums(self, buff):
      """
          Fix a dex format buffer by setting all checksums

          :rtype: string
      """
      import zlib
      import hashlib

      signature = hashlib.sha1(buff[32:]).digest()

      buff = buff[:12] + signature + buff[32:]
      checksum = zlib.adler32(buff[12:])
      buff = buff[:8] + pack("=i", checksum) + buff[12:]

      debug("NEW SIGNATURE %s" % repr(signature))
      debug("NEW CHECKSUM %x" % checksum)

      return buff