multi-threaded encryption

[Robert J. Hansen]

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Christian Bienia wrote:
> Before we can recommend the project, I wanted to get some feedback on
> the plausibility and feasibility of the project. How difficult would it
> be to implement the changes? And is there need for a parallel GnuPG?

I'm not a GnuPG developer; however, I think I may have some useful
information for you.

As you've said, counter mode and stream ciphers lend themselves best to
parallelization, but the OpenPGP RFC does not specify counter mode or
stream ciphers.  The RFC specifies a slightly perverse cipher feedback
mode which does not lend itself well to parallelization.

The RFC language allows for experimental algorithms.  You may have
better luck implementing this as an experimental, rather than trying to
add this support to the core of GnuPG.


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