On Wed, 2013-04-17 at 20:21 -0400, Greg Smith wrote:
> -Original checksum feature used Fletcher checksums.  Its main problems, 
> to quote wikipedia, include that it "cannot distinguish between blocks 
> of all 0 bits and blocks of all 1 bits".

That is fairly easy to fix by using a different modulus: 251 vs 255.

        Jeff Davis

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