Re: Have maps (was Merkle, URLs, etc)
Olaf van der Spek <[email protected]> Thu, 10 Mar 2005 21:12:28 +0100
| Newsgroups | gmane.network.bit-torrent.general |
|---|---|
| Message-ID | <[email protected]> |
Joseph Ashwood wrote: > ----- Original Message ----- > From: "Elliott Mitchell" <[email protected]> > Subject: Re: [BitTorrent] Have maps (was Merkle, URLs, etc) > > > >>>From: Joseph Ashwood <[email protected]> >>>From: "Konstantin 'Kosta' Welke" <[email protected]> >>> >>>>On Sun, 6 Mar 2005 17:36:43 -0800, Joseph Ashwood <[email protected]> >>>>wrote: >>> >>>[Optimal case for binary trees?] >>> >>>>In the case of "I need to verify this one piece to be able to share >>>>it". >>> >>>Actually the optimum case for that is having the verification in the >>>node, >>>regardless of branching. this then leads to the overhead to verification >>>= >>>depth, binary trees will be deepest, they are not optimal. >> >>Incorrect. >> >>The binary tree will be deeper, however you only need to send one hash >>per level. > > > Actually you will need 2, otherwise you cannot complete the hash computation > for the next level. But one of those two is from 'below' and can be calculated by yourself. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/BitTorrent/ <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/