Easily regenerate SSH keys... just in case

nukekeys.sh

#!/bin/sh
# nukekeys.sh
# Easily regenerate SSH keys... just in case
# https://gist.github.com/bbrks/6692143

read -p "WARNING: This will regenerate ALL *_rsa keys!! Are you sure? " -n 1 -r
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
  exit 1
fi

cd ~/.ssh

BITS=8192;
keys=(*_rsa)

rm -f *_rsa
rm -f *_rsa.pub

for i in "${keys[@]}"
do :
  echo "\nEnter passphrase for ${i}"
  ssh-keygen -b $BITS -t rsa -q -f $i
done