text: from django import template
  import base64
  import hashlib
  
  register = template.Library()
  
  
  @register.simple_tag
  def ssh_to_fingerprint(line):
      key = base64.b64decode(line.strip().split()[1].encode('ascii'))
      fp_plain = hashlib.md5(key).hexdigest()
      return ':'.join(a + b for a, b in zip(fp_plain[::2], fp_plain[1::2]))
  