[BitTorrent] Back to Merkle Hash Trees...

Konstantin 'Kosta' Welke kosta at fillibach.de
Wed Feb 9 15:56:34 EST 2005


On Mon, 07 Feb 2005 20:04:20 +0100, Olaf van der Spek <OvdSpek at LIACS.NL> wrote:
> Joseph Ashwood wrote:
>> From: "Olaf van der Spek" <OvdSpek at LIACS.NL>

>>> If I have file A, calculate the merkle tree and root hash rh(A), give
>>> you rh(A), how can you give me file B with rh(B) = rh(A)?
>> Depends on the hash used.
> Of course. I assumed that was safe and I thought somebody 'invented'
> another method that'd work even with a safe hash.

Then it wouldnt be 'safe', anymore.

Kosta


 
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