Need help about CRC calculation.

Hello, please help me to solve this problem:

How do we find 4 bytes to append to the end of a bit stream so that

the CRC32 calculation on the new bit steam always produce a constant

value no matter what the bit stream is. This constant value is not

zero.

Normally, the 4 bytes are just the CRC of the original bit stream ,and

when we run the CRC checker to the (bit stream+4 byte CRC), it will

produce a zero.

So far, I did not find anyone discuss this. But I do find a person

post a similar question on 4/12/2002 on a web site and no noe offers

an answer yet.

Thanks in advance.

Z. Fan