Subject: Re: [boost] Namespace for a Boost Hashing Library
From: Scott McMurray (me22.ca+boost_at_[hidden])
Date: 2010-05-11 11:21:07
On 11 May 2010 05:23, Paul A. Bristow <pbristow_at_[hidden]> wrote:
> And there are other related hash functions like ISBN and Visa card check characters that could usefully be provided in
> the same name/space?
Things are set up to give a digest in a way that can easily and
portably be read from and written to an octet stream (like a socket or
file) as a check on an entire message. There's a fundamental
assumption that the input could be arbitrarily long, and currently the
output is assumed to be a multiple of 8 bits.
So in theory yes, but practically a different set of concepts might be
better, given the different properties of the inputs and the small
size of the outputs for things that are more like parity checks.
> (BTW Is there interest in these functions for a GSoC?)
New hash functions would definitely be possible as a GSoC, but it
would almost certainly have to be plural. With the concepts and
infrastructure already in place, adding a new checksum is usually a
pretty simple task.
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