3.1.1.2.2.2.3 Object(DN-Binary)
A value with this syntax is a UTF-8 string in the following format:
B:char_count:binary_value:object_DN
where char_count is the number (in decimal) of hexadecimal digits in binary_value, binary_value is the hexadecimal representation of a binary value, object_DN is a DN in Object(DS-DN) form, and all remaining characters are string literals. Each byte is represented by a pair of hexadecimal characters in binary_value, with the first character of each pair corresponding to the most-significant nibble of the byte. The first pair in binary_value corresponds to the first byte of the binary value, with subsequent pairs corresponding to the remaining bytes in sequential order. Note that char_count is always even in a syntactically-valid Object(DN-Binary) value.