CROSS-keccak-times4

Adds the parallel and incremental version of Keccak to the signature scheme CROSS and measures the difference in signing and verifying speed.

Test setup:

• CPU: Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
• Battery: plugged in, not charging

Run speed test:

• Build:

  cd Additional_Implementations/Benchmarking/
  rm -rf build
  mkdir build
  cd build
  cmake ../
  make
  cd ..
  

• Set CPU frqeuency to min until the next reboot:

  sudo cpufreq-set -c 0 --min 400000 --max 400000
  sudo cpufreq-set -c 1 --min 400000 --max 400000
  sudo cpufreq-set -c 2 --min 400000 --max 400000
  sudo cpufreq-set -c 3 --min 400000 --max 400000
  

• Collect results:

  ./bench_all.sh
  

TODO:
- in csprng_hash.h setup unique API for hashing and csprng
- verify the usability of SHA_3_LIBKECCAK in sha3.h
- add ifdefs to only use parallel keccak when compiling for avx2