-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 02/10/2011 01:19 PM, Thomas Anderson wrote:
> I am very new to freenet. I read wiki[1] and some doc saying that
> freenet implements dht protocol.
>
> I am going to learn something about dht based on freenet, so I have a
> few questions.
>
> 1st, is it possible for a node (supposed it is located in a data
> center) querying to know if other nodes contain a specific data/ doc
> (maybe search by e.g. file name)? So the node who issues the query
> can, for instance, do a simple counting, such as how many nodes
> currently holds the filename called license.txt.
>
> 2nd, what would the right place (in source code) to start checking the
> dht related stuff? I check out the source code but do not find dht
> related comment or function. Also, freenet wiki search returns `no
> matches for dht'.
>
> I appreciate any advice.
> Thank you.
>
>
> [1]. Wikipedia.
> http://en.wikipedia.org/wiki/Distributed_hash_table#DHT_protocols_and_implementations
That's not how Freenet works. Everything that is inserted in the global
datastore is first encrypted and error correction is added, it also splits
everything into 32K pieces each of which is inserted separately.
Therefore it is impossible to search Freenet proper for DHT hash of the specific
file. Because you only have pieces which are encrypted, and you don't know what
they mean until you have enough of them and you have also the decryption key.
Now if you do possess the decryption key, you could, on the Opennet, start
connecting to people's nodes one at the time and send them requests for pieces
that you know comprise that file.
There's much more, maybe others will help you also.
- volodya
- --
http://freedom.libsyn.com/ Echo of Freedom, Radical Podcast
"None of us are free until all of us are free." ~ Mihail Bakunin
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
iQEcBAEBAgAGBQJNU90oAAoJENW9VI+wmYasfIgH/3vlQUd2dg8ODm4f6SURDjfG
/bDRwjNHnkRsWBvYAT8fTno8wDem++IPLWSBUGcU8IzCgfXKHTy9W/1ebhKJ2bQG
QHBs4qOtSxGtgwi1wQ8SQweUkcp++16ViLxQm/waULIeDE8tfxSTT1aWdvV0fd+S
Tz4dY7jjvPa/b6AQ0YABF8z7FMOBNGYcXTJrHDveGCQeTAuVcXMSUBbauiGq4VoS
jqoinmr92f8BlhcVL/0pv9RmQkFbud51F2rflLes13aZ/nGwh4uT0kStz2fiZwHJ
yJFcBVDhUnXnMQJSItSr7TbcrVSGkiUHaUzkuEh8kpaj+sE7hR/o3VhBLVHqX+4=
=lUj2
-----END PGP SIGNATURE-----
_______________________________________________
Support mailing list
Support@freenetproject.org
http://news.gmane.org/gmane.network.freenet.support
Unsubscribe at http://emu.freenetproject.org/cgi-bin/mailman/listinfo/support
Or mailto:support-requ...@freenetproject.org?subject=unsubscribe
