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Subject: Re: [boost] Any interest in hashing algorithms SHA and/or FNV1a?
From: Jeff Flinn (jeffrey.flinn_at_[hidden])
Date: 2013-11-13 22:26:17

On 11/13/13 6:03 PM, Christopher Kormanyos wrote:

> There is another interface detail that can lead to a
> useful flexibility. In addition to init --- digest --- finalize scheme,
> some use cases need to finalize a running hash, yet retain
> its state. This can be accomplished with a kind of function
> such as "get_result_and_nochange_the_state".
> In this way, a running hash final result can be obtained,
> but more bytes can be fed into the hash. This can be
> a constant member function, as a copy of the hash
> object needs to be made.

I've this exact situation - currently two hashes are maintained.

> If you would like to compare notes, or need some
> MD5, SHA-1, SHA-256 test cases based on the NIST vectors,
> or just would like to see a really efficient microcontroller
> (and PC) implementation, the codes in my git above
> may useful.
> Keep up the good work!



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