Benchmark SSH ciphers transfer speed - Mac and Linux

benchmark.sh

#!/usr/bin/env bash

# Creates a 100Mb file send via SSH and test the transfer speed
perl -e 'print "\0" x 100000000' > test.txt && du -sh test.txt

# get a list of available ciphers on your machine
CIPHERS="$(ssh -Q cipher)"

for cipher in $CIPHERS; do
  echo "$cipher"
  # Try every cipher 2 times
  for try in 1 2; do
    scp -c "$cipher" test.txt user@yourhost.com:/dev/null
  done

  echo " ------ "
  echo ""
done