code: def new_credentials():
      
      identifier = binascii.b2a_hex(os.urandom(8)).decode().upper()
      seed = binascii.b2a_hex(os.urandom(32))  # Corresponds to private key
      return identifier, seed
docs: Generate a new identifier and seed for authentication.
  
      Use the returned values in the following way:
      * The identifier shall be passed as username to SRPAuthHandler.step1
      * Seed shall be passed to SRPAuthHandler constructor