New proposal 359: counter galois onion

Closes #186 (closed).

assigned to @nickm

requested review from @ahf

approved this merge request

@nickm I think this is good to merge. I do not have any feedback on the crypto in here, but I assume you got those details right with your experiments and test vectors.

I think this can be landed as is and we can follow up with other MR's as needed once the implementation with Arti and C Tor begins and we can start testing it out there

Nice work!

added Project 112 label

changed the description

merged

mentioned in commit d563c7a1