Generates the right sha1 and sha256 for Content Security Policy aware scripts

csp

#!/usr/bin/env bash

echo ''
if [ "$1" = "" ]; then
  echo 'csp sha1 and sha256 generatoor'
  echo 'csp "code"'
  echo 'csp /file-name'
else
  if [ -f "$1" ]; then
    CONTENT=$(cat $1)
  else
    CONTENT=$1
  fi
  echo "sha1-$(echo -n "$CONTENT" | openssl dgst -sha1 -binary | base64)"
  echo "sha256-$(echo -n "$CONTENT" | openssl dgst -sha256 -binary | base64)"
fi
echo ''

How we use to create the ssh256 key for CSP? How we use in header?