GPG with SMP?

[Robert J. Hansen]

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 hate to say "read the fine message, please," but -- well, read the
fine message, please.

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.