new_contents: from django import template
  from webframe.functions import encrypt as efn, decrypt  as dfn
  
  register=template.Library()
  
  @register.filter
  def encrypt(val):
     '''
     Encrypt the specified val with the default secret-key
     '''
     return efn(val)
  
  @register.filter
  def decrypt(val):
     '''
     Decrypt the specified val with the default secret-key
     '''
     return dfn(val)
  
subject: Add the encrypt and decrypt templatetag