Re: [GNUnet-developers] [patch] randomized download order

[Christian Grothoff]

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Looks good & is perfectly reasonable. In CVS. Thanks!

Christian

On Tuesday 25 June 2002 10:47 am, Igor Wronsky wrote:
> Hello all. I noticed that gnunet-download always downloads
> the content blocks in the same order. This might skew the
> global block distribution if downloads are aborted, that is,
> allow the first blocks to become more widely distributed
> than the last ones. Also a situation might be imagined where e.g.
> node A comes around to share a file k, 4 other nodes start
> to download k, all in the same order. After some time,
> node A gets enough and goes away before any of them did get
> the whole file <sniff>. If the 4 people had been downloading
> in randomized order, they might have been able to reconstruct
> the entire file from each other.
>
> This small patch (against the current CVS) attempts
> to remedy the situation by randomizing the download order
> somewhat (tree structure restricts this a little). The
> increase in execution time shouldn't be too expensive.
>
> Comments?
>
>
> Igor
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