[BitTorrent] BT2 & hash trees

Gregorio Roper gregorio at gmx.li
Sun Jul 18 18:32:23 EDT 2004


Olaf van der Spek wrote:
>>I didn't find any comment on how the pieces of a torrent will be addressed. If I 
>>understood correctly that BT2 is supposed to allow cross-trading, may I suggest that the 
>>pieces be addressed similar to: <file root hash><log2(pieceSize) or level in hash 
>>tree><pieceNum>.
> 
> 
> Eh, wouldn't it be easier to first exchange lists of files with integer 
> IDs and then just use the integer ID (8, 16, 24 or 32 bit) instead of 
> the 160 bit hash?

Not necessarily easier but it would save a substantial amount of bandwidth.

mfg
gregorio



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