[Cryptech Core] modexp optimization plans (was: Re: teleconf?)

[Peter Stuge]

The plan is solid for maximizing performance as quickly as possible.

Joachim Strömbergson wrote:
> 4.2 Implement support for short exponent. Currently the size of the
> exponent is ignored. This means that an operation with a public exponent
> (such as 65537) takes as long time as if the exponent is as big as the
> modulus. This fix is easy to do and will drastically reduce the time to
> do operations with short exponents.

It also introduces a timing artefact based on input data. Like
operation skippin I think this needs to be configurable, if possible
at all.


//Peter