GPG with SMP?

Aaron Toponce aaron.toponce at gmail.com
Wed Oct 5 16:48:01 CEST 2011


On Wed, Oct 05, 2011 at 10:42:58AM -0400, Robert J. Hansen wrote:
> On 10/5/11 10:38 AM, Thomas Harning Jr. wrote:
> > Certain modes of AES can be safely parallelizable in both
> > directions: CTR can be since it uses a counter value to make each
> > encryption different for the XOR operation used.

I didn't see this message in the thread on the list. Was this sent
privately to Mr. Hansen?

> CTAK encryption is not parallelizable.  Given that's the mode used in
> GnuPG, GnuPG's symmetric encryption is not parallelizable.  There do
> exist some parallelizable modes, but GnuPG doesn't use them.

That's what I wanted to know. Your response makes perfect sense. Thanks.

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