Partial File Sharing Protocol Development

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Partial File Sharing Protocol Development

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gnutellafan Partial File Sharing Protocol... May 13th, 2002, 09:23 AM

gnutellafan PFSP 0.1 - Very Very Rough May 13th, 2002, 12:29 PM

Taliban Re: PFSP 0.1 - Very Very Rough May 13th, 2002, 01:16 PM

gnutellafan security May 13th, 2002, 01:53 PM

Taliban Re: security May 13th, 2002, 03:11 PM

gnutellafan Yes, I have no doubt that there... May 17th, 2002, 12:50 PM

RusselHarvey In fact, rather than fake file or... May 17th, 2002, 04:04 PM

Guest eDonkey isn't a good example,... May 18th, 2002, 04:02 AM

gnutellafan Taliban, the java source for Tiger... May 18th, 2002, 05:21 AM

Taliban Oh I'm not even going to try tiger... May 18th, 2002, 05:56 AM

Agnostic and one of the best working, if... May 18th, 2002, 07:27 AM

Guest The best? Hmm, edonk has some... May 18th, 2002, 08:39 AM

Agnostic "the best working" is a relative... May 18th, 2002, 11:22 AM

RusselHarvey One of the reasons that many don't... May 18th, 2002, 02:04 PM

Guest Re: Re: PFSP 0.1 - Very Very Rough May 19th, 2002, 06:39 AM

Taliban The X-Alternate-Location is added... May 19th, 2002, 10:15 AM

Guest file chunk size May 20th, 2002, 01:21 PM

Taliban I would skip the lines where it... May 20th, 2002, 03:52 PM

gnutellafan thank you May 20th, 2002, 04:27 PM

gnutellafan I disagree. This is an issue of... May 21st, 2002, 03:18 PM

gnutellafan updated May 21st, 2002, 03:32 PM

Taliban Yes, but it's not as if you were... May 21st, 2002, 03:44 PM

gnutellafan minor update June 1st, 2002, 05:32 AM

Guest You can't do this because it's too... June 2nd, 2002, 05:14 AM

Gamer only aids in downloading pirated... June 13th, 2002, 07:55 AM

gnutellafan PFSP 0.2 - Programers needed! June 26th, 2002, 03:27 PM

TorK Partial File Sharing Protocol... July 1st, 2002, 03:32 PM

gnutellafan now available in shareaza 1.4!? July 19th, 2002, 10:39 AM

Syfonic The future of Gnutella does not... July 21st, 2002, 09:56 AM

#1 (permalink)

May 13th, 2002

gnutellafan gnutellafan is offline

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Join Date: September 21st, 2001

Posts: 110

security

It is actually rather easy to fake a full file hash, just lie! There is no way for one client to know that the other client lied until it has download the whole file and rehashed it itself. Then, if there is a problem it doesnt know if it was just a mistake in transfering data. If the file was multi-sourced then there is no way to know which of the many clients it downloaded from lied. This is a MAJOR vulnerability with the current gnutella network. One rouge client could search the net, find the size and hash of files, and then use the same file size and hash to respond to ALL queries it can, send garbage data as just a small part of a swarm and destroy thousands or possibly millions of file transfers with minimal bandwith usage.

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