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Author Topic: webcache  (Read 25246 times)

magic

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webcache
« on: September 16, 2004, 05:29:26 PM »

do you think about implementing the webcache function?

More infos about webcache: http://ispcachingforemule.de.vu/

regards,
magic
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Jacobo221

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Re: webcache
« Reply #1 on: September 17, 2004, 03:34:08 AM »

as long as the legal issues aren't solved i don't think this would be a good idea... but that's just my personal opinion ;-)
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thepolish

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Re: webcache
« Reply #2 on: September 17, 2004, 09:26:20 AM »

I agree with jacobo221 too :)

Thepolish
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lfroen

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Re: webcache
« Reply #3 on: September 17, 2004, 09:34:43 AM »

You don't want your ISP to know WHAT you are sharing :) Don't you :) ?
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pil0t

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Re: webcache
« Reply #4 on: September 17, 2004, 01:01:05 PM »

I would rather like to see and end-to-end encryption of the
data (privacy). And after that store and forward with intermediate
hops...
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magic

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Re: webcache
« Reply #5 on: September 19, 2004, 01:12:15 PM »

@Jacobo221,

using the proxy of my ISP is nothing illegal. I don't understand what you meen with "legal issues".

@lfroen,

all data send through the proxy will be encryptet.

regards,
magic
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lfroen

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Re: webcache
« Reply #6 on: September 19, 2004, 01:38:12 PM »

Explaining "legal issues" : ISP's do not want to touch anything that involves file sharing (read piracy). Moreover, if asked by court, ISP will be obligated to take mesures to prevent such. And you suggest, that instead, ISP will provide it's own servers to store pirated data (encrypted or not ?!). This will not happen.

Regarding encryption: this is fairy tales. No *mule support cryptography. You must change protocol to make it work (authentication, key exchange, etc etc)
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pil0t

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Re: webcache
« Reply #7 on: September 20, 2004, 03:26:17 PM »

@lfroen: An extension to the protocol with fallback to plain text will do for the
begining. As Emule has the largest number of users the extension should be
supported by Emule as well. If most of the users are using the new version,
plain text could be switched off...
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Kry

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Re: webcache
« Reply #8 on: September 20, 2004, 04:50:59 PM »

Implementing such a encription feature is not hard, I can do it in 1 hour (REALLY!). Problem is, that doesn't help much,because the other end of the encription must be a trusted source, and we don't know how if it is. It can be the RIAA downloading from you ;)
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pil0t

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Re: webcache
« Reply #9 on: September 20, 2004, 07:22:01 PM »

Well, the encryption should solve only one part: An ISP that is doing
more than you expect it to do and that you pay for (Task of the ISP is
not sniffing your communication - so make it impossible for them to
do it).

Other problems are solved by the ipfilter.dat. And for some things we
need to hide data transfer in other traffic, hide the sender by forwarding
packets, ... but this asks for a completely different protocol while encryption
is relatively easy to do.

IMHO encryption is more a political problem. As I already wrote, it would
be necessary that most people can use this feature. With the current
numbers (~90% of my peers are Emule) encryption is almost worthless
if Emule is not supporting this feature.
« Last Edit: September 20, 2004, 07:23:26 PM by pil0t »
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Kry

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Re: webcache
« Reply #10 on: September 20, 2004, 07:23:36 PM »

I'll talk to eMule devs about it, as an option of course.

I wonder what for. Encrypted:

a) Protocol

b) data

c) both

d) selectable


....
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pil0t

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Re: webcache
« Reply #11 on: September 20, 2004, 07:45:17 PM »

I think encrypting data is mandatory, but it's better to encrypt data
and protocol. Maybe define new (extended) packets for the encrypted
transfers. One packet containing other packets as payload will do.

To maintain compatibility with older clients, I think it would be necessary
to the start a plain text communication. When the peer can use encryption
the communication will switch to encryption.
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phoenix

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Re: webcache
« Reply #12 on: September 21, 2004, 12:04:04 PM »

Well, encrypted communication would work for me, I would be able to use aMule in my office. Nowadays we are not allowed to use any p2p program.

Cheers!
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pil0t

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Re: webcache
« Reply #13 on: September 21, 2004, 03:06:04 PM »

@phoenix: This will not work. If you look at your traffic you will learn that
the signature (number of connections/second, amount of data transfered,
source, destination, ...) is unique for most p2p applications. Even if
your use encryption it will be possible to detect an ed2k communication
by analyzing the traffic!

The only thing encryption can do is to hide the data from an attacker
sniffing your communication. IMO it's not even possible to prevent
a man-in-the-middle attack, because peer authentication is not possible.

But one thing the providers are currently discussing is scanning the
traffic for viruses, worms, copyrighted material, ... . In this area encryption
will help. In the next step they might think about the more sophisticated
attacks, and we might think about more sophisticated countermeasures ;-)
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Kry

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Re: webcache
« Reply #14 on: September 21, 2004, 03:43:39 PM »

Well, I'll think about implmenting it... after 2.0
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