anchor.diff:  For more details about jwe, see the
   link:https://funcool.github.io/buddy-sign/latest/#jwe[buddy-sign] documentation.
   
  -In order to use any asymetric encryption algorithm, you should have private/public
  +In order to use any asymmetric encryption algorithm, you should have private/public
   key pair. If you don't have one, don't worry, it is very easy to generate it using
   *openssl*, see this link:https://funcool.github.io/buddy-sign/latest/#generate-keypairs[faq entry].
   
  
positive.code:              (wrap-authentication backend)))
  ----
  
  The process of authentication of this backend consists in parse the "Authorization"
  header, extract the token and in case of the token is extracted successfuly, call
  the `authfn` with extracted token.
  
  .This is a possible aspect of the authorization header
  
negative.code: === Http Basic
  
  The HTTP Basic authentication backend is one of the simplest and most insecure
  authentication systems, but is a good first step to understanding how _buddy-auth_
  authentication works.
  
  .Example ring handler/view
  