Re: Question on PE Checksum

Hi Walter,

I have looked into efficient ways of implementing the Internet checksum 
and figured
out that you need 32 bit arithmetic to calculate the 16 bit checksum. 
When using
a '32 bit Internet checksum' this would require support for 64 bit 
integers.
I do think that we should not require that. Therefore I prefer the 16 
bit Internet
Checksum.

I'm sorry for not bringing this up again to the mailing list before it 
went into
the ID.

Best regards
Michael

On Jul 20, 2005, at 23:05 Uhr, Johnson Walter-CWJ002 wrote:

> The group had reached a consensus on using a 32 bit Internet Checksum 
> for the 32 bit PE Checksum hash on the RSerPool mailing list. I see 
> that the latest drafts use the 16 bit Internet Checksum to generate a 
> 16 bit PE Checksum hash.
>
> What was the reasoning for this change in the newly released drafts?
>
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