[pjmlp]

> How am I supposed to implement bitslicing to vectorize operations in Java?

By using unsafe (not ideal), the GPGPU bindings like Aparavi/JCuda or the future GPGPU API?

Honest question. Wondering about the possibilities.

> It is purely the case that high level languages do not offer you the flexibility and control to implement side-channel free crypto.

I would say Ada is an high level language that offers C and C++ flexibility, while being safe.

[xnull]

The overall question is whether bindings or language features that expose direct control of the underlying architecture (such as D) can still be used to implement crypto. The answer is likely yes, though it is uncharted territory that only someone who knows what they are doing should attempt.

[pjmlp]

Sure I don't have any experience with crypto algorithms to have a proper opinion.