Anonymous Credit

Sat, 01 Sep 2001 23:53:17 +0100

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Ben Laurie wrote:
> We feel sure this must have already been invented, but neither of us is
> aware of any previous publication. Here it is:
> 
> At the head of the stream, present a signature for X_0. X_0 is the hash
> of the concenation of the first block of data and X_1. X_1 is the hash
> of the concatenation of the second block and X_2, and so forth.

I believe this scheme is used by Freenet, under the name "progressive hash".

- -- 
David Hopwood <david.hopwood@zetnet.co.uk>

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