(PECL radius >= 1.3.0)
radius_salt_encrypt_attr — Salt-encrypts a value
$radius_handle
   , string $data
   )Applies the RADIUS salt-encryption algorithm to the given value.
   In general, this is achieved automatically by providing the
   RADIUS_OPTION_SALT option to an attribute setter
   function, but this function can be used if low-level request construction
   is required.
  
dataThe data to be salt-encrypted.
   Returns the salt-encrypted data  or FALSE on failure.