Non-math-geek needs help with CRCs (binascii.crc32)

[Tim Roberts]

"nobody" <get at bent.com> wrote:

>> >Somehow, depending on how the numbers are massaged, the old code based on
>> >$EDB88320 is compatible with what the above site documents as $04C11DB7.
>> Did you notice that those two numbers are mirror images of each other?
>> Could just be a difference in interpretation.
>
>How does one get the same result with a reflected and non-reflected
>algorithm using the exact same input?

Well, what I was saying was that perhaps the two algorithms are doing their
computations in the opposite order.  It's just suspicious that they are
reflections of each other.
-- 
- Tim Roberts, timr at probo.com
  Providenza & Boekelheide, Inc.