In an ASN.1 BER file, there is a header before the first message and separators between the subsequent messages. The header and the separators are random sequences of hexadecimal 00 and FF bytes, of any length. For example, a header or separator might have the following form:
00 00 FF 00 FF FF FF 00 FF 00
The following configuration enables the
processor to find the header and separators. The
properties use regular expressions to define the pattern.