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Re: [Gzz] hemppah's research problems document
From: |
Tuomas Lukka |
Subject: |
Re: [Gzz] hemppah's research problems document |
Date: |
Sat, 14 Dec 2002 21:48:52 +0200 |
User-agent: |
Mutt/1.4i |
On Sat, Dec 14, 2002 at 08:37:49PM +0100, B. Fallenstein wrote:
> Tuomas Lukka wrote:
> >No, this is still somewhat missing the point.
> >
> >Ok, I want to say I want all RFCs to always be on my machine so that if I
> >go out
> >with the laptop I have them there.
> >
> >Some systems, such as DHTs cannot let other people use this "mirror"
> >because
> >the files are not in the location the DHT would place them in.
> >
> >So if we think about a 5GB / 100MB split between my mirrored data / DHT
> >area (which is quite reasonable), most of the potential capacity in the
> >network
> >is not getting used!
>
> I don't understand at all. As I have been so adamant about in my
> statements to hemppah, the DHT is for *locating* the data in the
> network.
No, that raises entirely different set of issues.
>Your machine would, when going online, place into the DHT
> mappings (blockid -> your-ip-address), so if any computer tries to
> download the RFCs, they would in the DHT get your machine's address, and
> then contact your machine to download from there.
The problem is that this puts in more steps to the algorithm and makes it
MUCH more vulnerable to attacks: simply placing bogus data will be a pretty
good attack.
Similarly, if you put someone else's address up for all blocks, you can
create an immediate distributed DOS attack on his computer.
I don't know if a system like this has been analyzed by anyone; it may
be possible to overcome e.g. these problems but it's certainly not trivial.
Tuomas
- [Gzz] hemppah's research problems document, B. Fallenstein, 2002/12/12
- Re: [Gzz] hemppah's research problems document, hemppah, 2002/12/13
- Re: [Gzz] hemppah's research problems document, Tuomas Lukka, 2002/12/13
- Re: [Gzz] hemppah's research problems document, B. Fallenstein, 2002/12/14
- Re: [Gzz] hemppah's research problems document,
Tuomas Lukka <=
- Re: [Gzz] hemppah's research problems document, B. Fallenstein, 2002/12/14
- Re: [Gzz] hemppah's research problems document, Tuomas Lukka, 2002/12/14
- Re: [Gzz] hemppah's research problems document, B. Fallenstein, 2002/12/14
- Re: [Gzz] hemppah's research problems document, Tuomas Lukka, 2002/12/15
- Re: [Gzz] hemppah's research problems document, B. Fallenstein, 2002/12/15
- Re: [Gzz] hemppah's research problems document, hemppah, 2002/12/16
- Re: [Gzz] hemppah's research problems document, Tuomas Lukka, 2002/12/16
- Re: [Gzz] hemppah's research problems document, hemppah, 2002/12/16
- Re: [Gzz] hemppah's research problems document, hemppah, 2002/12/16
- Re: [Gzz] hemppah's research problems document, Tuomas Lukka, 2002/12/16